ncie san 7-mode - gratis exam · question 3 in the diagram shown, a portset is created on...

NCIE SAN 7-mode

Number: NS0-502Passing Score: 750Time Limit: 90 minFile Version: Sept-23-2013

http://www.gratisexam.com/

NCIE SAN 7-mode NS0-502

NS0-502

QUESTION 1You see the following error on the storage controller's console or messages file.What is the most likely cause for this error?.

A. portal group misconfigurationB. iSCSI CHAP misconfigurationC. iSNS misconfigurationD. IPsec misconfiguration

Correct Answer: BSection: (none)Explanation

Explanation/Reference:Message: ISCSI: Authentication failed for initiator <nodename>

Explanation: CHAP is not configured correctly for the specified initiator.

What to do: Check CHAP settings.Inbound credentials on the storage system must match outbound credentials on the initiator.Outbound credentials on the storage system must match inbound credentials on the initiator.You cannot use the same user name and password for inbound and outbound settings on the storagesystem.

https://library.netapp.com/ecmdocs/ECMP1196995/html/GUID-C8638356-E691-416C-A841-4C4897BC879E.html

QUESTION 2What would you use to share a data LUN among multiple servers where each server has simultaneous writeaccess?

A. host-based BootBIOSB. host-based multipathingC. host-based volume managerD. host-based clustered file system

Correct Answer: DSection: (none)Explanation

Explanation/Reference:A clustered file system is a file system which is shared by being simultaneously mounted on multiple servers.

http://en.wikipedia.org/wiki/Clustered_file_system

QUESTION 3

In the diagram shown, a portset is created on Controller 1 with the command: controller1> portsetcreate -f ntapportset 0b . This portset is bound to the igroup with all the initiators in it.

How many paths can Host 1 see to a LUN on Controller 1?

A. six pathsB. four pathsC. eight pathsD. two paths


Explanation/Reference:Portsets are a collection of ports that can be associated with an igroup. Portsets are used to limit the ports thatcan be used by the initiators in the igroup to access a target lun.

portset create { -f | -i } portset_name [ port ... ]

Creates a new portset.

If the -f option is given, an FCP portset is created

QUESTION 4What are three relevant perfstat counters to check for unaligned I/O that do not fall on the WAFL boundary?

(Choose three.)

A. wp.partial_write

B. vvol_read.io_valid

C. read/write_align_histo.XX

D. read/write_partial_blocks.XX

E. xinode content misses

Correct Answer: ACDSection: (none)Explanation

Explanation/Reference:http://www.everythingvm.com/content/reading-perfstat-fileshttp://www.youtube.com/watch?v=ADzgqUGD2zA

There are various ways of determining if you do not have proper IO alignment.

Using perfstat counters,under the wafl_susp section, “wp.partial_writes“, “pw.over_limit“, and“pw.async_read,“ are indicators of improper alignment. The “wp.partial write“ is the block counter ofunaligned I/O. If more than a small number of partial writes happen, then WAFL will launch a background read.These are counted in “pw.async_read“; “pw.over_limit“ is the block counter of the writes waiting on diskreads.

There are some per LUN counters to track I/O alignment:lun:read_align_histo: * bin histogram for reads that tracks how many 512b sectors off the beginning of aWAFL block an I/O was; reported as a % of reads.lun:write_align_histo:* same for writes.lun:read_partial_blocks:* % reads that are not a multiple of 4k.lun:write_partial_blocks:* same for writes.

If any of these except for read/write_align_histo[0] is nonzero, you had some misaligned I/O.

QUESTION 5

The table highlights the space management policy that is defined for a particular flexvol, acmevol. Based on theinformation provided in the table, which action will the storage controller take when it runs out of space in thevolume?

A. It will try deleting Snapshot copies first to reclaim space before trying to grow the volume.B. It will grow the volume before deleting Snapshot copies.C. It will only try deleting Snapshot copies to reclaim space and will not grow the volume.D. It is irrelevant since fractional_reserve is 0%.

Correct Answer: CSection: (none)Explanation

Explanation/Reference:https://communities.netapp.com/thread/10418http://backdrift.org/man/netapp/man1/na_vol.1.html

vol options volname [ optname optval ]

guarantee file | volume | none

This option controls whether the volume is guaranteed some amount of disk space. The default value isvolume, which means that the entire size of the volume will be preallocated. The file value means that spacewill be preallocated for all the spacereserved files and LUNs within the volume. Storage is notpreallocated for files and LUNs that are not space-reserved. Writes to these can fail if the underlyingaggregate has no space available to store the written data. The none value means that no space will bepreallocated, even if the volume contains space-reserved files or LUNs; if the aggregate becomes full,space will not be available even for space-reserved files and LUNs within the volume. Note that both thenone and file settings allow for overbooking the containing aggregate aggrname. As such, it will be possibleto run out of space in the new flexible volume even though it has not yet consumed its stated size. Usethese settings carefully, and take care to regularly monitor space utilization in overbooking situations. Forflexible root volumes, to ensure that system files, log files, and cores can be saved, the guarantee must bevolume. This is to ensure support of the appliance by customer support, if a problem occurs.

Disk space is preallocated when the volume is brought online and, if not used, returned to the aggregatewhen the volume is brought offline. It is possible to bring a volume online even when the aggregate hasinsufficient free space to preallocate to the volume. In this case, no space will be preallocated, just as if thenone option had been selected. The vol options and vol status command will display the actual value of theguarantee option, but will indicate that it is disabled.

fractional_reserve <pct>

This option decreases the amount of space reserved for overwrites of reserved objects (LUNs, files) in avolume. The option is set to 100 by default and indicates that 100% of the required reserved space willactually be reserved so the objects are fully protected for overwrites. The value can vary from 0 to 100.Using a value of less than 100 indicates what percentage of the required reserved space should actually bereserved. This returns the extra space to the available space for the volume, decreasing the total amount ofspace used. However, this does leave the protected objects in the volume vulnerable to out of space errorssince less than 100% of the required reserved space is actually reserved. If reserved space becomesexhausted this will cause disruptions on the hosts using the objects. If the percentage is decreased below100%, it is highly recommended that the administrator actively monitor the space usage on the volume andtake corrective action if the reserved space nears exhaustion.

try_first volume_grow | snap_delete

A flexible volume can be configured to automatically reclaim space in case the volume is about torun out of space, by either increasing the size of the volume or deleting snapshots in the volume. Ifthis option is set to volume_grow ONTAP will try to first increase the size of volume before deletingsnapshots to reclaim space. If the option is set to snap_delete ONTAP will first automaticallydelete snapshots and in case of failure to reclaim space will try to grow the volume.

vol autosize volname [ -m size [k|m|g|t] ] [ -i siz e [k|m|g|t] ] [ on | off |reset ]

Volume autosize allows a flexible volume to automatically grow in size with in an aggregate. This is usefulwhen a volume is about to run out of available space, but there is space available in the containingaggregate for the volume to grow. This feature works together with snap autodelete to automatically reclaimspace when a volume is about to get full. The volume option try_first controls the order in which these tworeclaim policies are used.

By default autosize is disabled. The on sub-command can be used to enable autosize on a volume. Thereset sub-command resets the settings of volume autosize to defaults. The off sub-command can be used todisable autosize.

The -m switch allows the user to specify the maximum size to which a flexible volume will be allowed togrow. The size of the volume will be increased by the increment size specified with the -i switch. A volumewill not automatically grow if the current size of the volume is greater than or equal to the maximum sizespecified with the -m option.

http://backdrift.org/man/netapp/man1/na_snap.1.htmlhttps://library.netapp.com/ecmdocs/ECMM1278396/html/bsag/GUID-A79CC460-E4B9-45B5-A702-FB888498D1A2.html

snap autodelete volname option value

Snap autodelete allows a flexible volume to automatically delete the snapshots in the volume. This is usefulwhen a volume is about to run out of available space and deleting snapshots can recover space for currentwrites to the volume. This feature works together with vol autosize to automatically reclaim space when thevolume is about to get full. The volume option try_first controls the order in which these two reclaim policiesare used.

snap reserve volname percent

For volumes that contain LUNs and no Snapshot copies, it is recommended that you set the percentage tozero.

https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_lun.1.html

lun set reservation lun_path [ enable | disable ]

Enables or disables the space reservation on the LUN.

QUESTION 6Which utility on Windows 2003 and Windows 2008 can be used to collect information about firmware and driverversions for an Emulex LP1xxxx/LPe1xxx HBA?


A. EMutilB. SANutilC. fcp configD. SANsurferE. HBAnywhere

Correct Answer: E

Section: (none)Explanation

Explanation/Reference:HBAnyware® is the Emulex management utility that provides local and remote management of Emulexadapters, providing both a graphical user interface (GUI) and command line interface (CLI). HBAnyware® 4.0features extensive reporting capabilities that, when used in combination with PowerShell, can help yougenerate reports on your storage area network (SAN) infrastructure.

http://www.emulex.com/blogs/labs/tag/hbaanywhere/

QUESTION 7Which utility on Solaris 10 can be used to collect information about firmware and driver versions for an EmulexLP1xxxx/LPe1xxxx HBA?

A. EMutilB. SANutilC. hbainfoD. SANsurferE. HBAnywhere

Correct Answer: ESection: (none)Explanation

Explanation/Reference:Emulex recently released a new version of its flagship host bus adapter (HBA) management solution,HBAnyware, for the Solaris SAN Foundation Suite (SFS) platform (Leadville). Emulex HBAnyware is a powerfuladapter management application designed for efficient, scaleable administration of FC HBAs and FCoE CNAson enterprise- class storage area networks (SAN).

http://www.emulex.com/artifacts/7b479cd6-2512-47f4-94c7-51a1f25464ec/hbanyware4solaris.pdf

QUESTION 8Which utility on Solaris 10 can be used to collect information about firmware and driver versions for a QlogicQLAxxx/QLExxxx HBA?

A. EMutilB. SANutilC. cfgadminD. SANsurferE. HBAnywhere


Explanation/Reference:The SANSurfer FC HBA Manager provides a graphical user interface (GUI) that lets you easily install,configure, and deploy QLogic Fibre Channel HBAs. It also provides robust diagnostic and troubleshootingcapabilities and useful statistical information to optimize SAN performance.

http://filedownloads.qlogic.com/files/ms/49541/ReadmeSANsurferFCmgr.htm

QUESTION 9An organization currently has a NetApp Fibre Channel block-based solution. With limited budget and resources,they want to create a new disaster recovery site that utilizes a NetApp solution.

What would the optimal solution include?

A. SnapMover and Fibre Channel at the disaster recovery site for all hostsB. SnapMirror and iSCSI at the disaster recovery site for all hostsC. Fibre Channel at both locations using ftp to replicate storageD. MetroCluster and NAS


Explanation/Reference:SnapMover is a local data migration solution that results in optimal workloads between NetApp split diskcabinets.

http://www.ts.avnet.com/uk/vendors/netapp/assets/netapp_software_solutions_guide_uk_full.pdf

FTP is not an optimal (or supported) choice for replicating data.

MetroCluster is suitable for enhancing availability. NAS is a file-level system. Replicating a block-based primarysite to a NAS-based secondary site would require exceptional measures and add cost.

Because iSCSI is a block-based solution, it could support the same kind of data as the primary site which isutilizing FC. iSCSI responds best to the "limited budget and resources" requirement of the solution.

QUESTION 10A company has a Fibre Channel environment and wants to connect a new host in a remote data center using50/125um OM2 multi-mode fiber cable and needs to support 2 Gb speeds. What is the maximum distance ofthe cable run supported in this situation?

A. 50/125um OM2 multi-mode fiber cable supports up to 500 meters at 2 Gb.B. 50/125um OM2 multi-mode fiber cable supports up to 10000 meters at 2 Gb.C. 50/125um OM2 multi-mode fiber cable supports up to 150 meters at 2 Gb.D. 50/125um OM2 multi-mode fiber cable supports up to 300 meters at 2 Gb.


Explanation/Reference:https://support.qlogic.com/app/answers/detail/a_id/691/~/general-distance-specifications-for-cables-and-optics-for-fibre-channel

The maximum length of a 2Gb FC over OM2 50 micron MM FC is 300m.

Note: for OM3 the max length is 500m.

QUESTION 11

Given the information provided in the diagram, what is the appropriate FC topology?

A. point-to-pointB. switched fabricC. arbitrated loopD. ring


Explanation/Reference:Switched fabric is a network topology where network nodes connect with each other via one or more networkswitches.

http://en.wikipedia.org/wiki/Switched_fabric

QUESTION 12Which FC SAN topology provides the best performance and scalability?

A. cascadeB. core-edgeC. full meshD. partial mesh


Explanation/Reference:The port count limitation on connecting fixed switches led to the core-edge topology in which a larger port countfixed switch or director-class switch is attached as a hub to fixed switches at the edge. Core-edge fabrics cangrow to hundreds of ports with devices only having to traverse two switch hops to access their storage. Small-scale core-edge deployments would leave too many unused ports in the core switch, so it is best suited forlarge fabrics.

http://www.computerweekly.com/SAN-topology-guide-and-Fibre-Channel-over-Ethernet-FCoE

QUESTION 13

What is the illustrated FC switch topology?

A. full meshB. core-edgeC. full cascadeD. partial mesh


Explanation/Reference:FC_Switch1 - 9 are edge switches. FC_Switch 9-10 are core edge switches.

http://www.filibeto.org/sun/lib/nonsun/brocade/53-0000231-05.pdf

QUESTION 14

Based on the diagram shown, what is the appropriate FC switch topology?

A. core-edgeB. full meshC. partial meshD. partial cascade


Explanation/Reference:This is a partial mesh topology since every switch is not physically connected to each other - note that there isno direct link between two of the switches.

http://www.filibeto.org/sun/lib/nonsun/brocade/53-0000231-05.pdf

QUESTION 15A 200GB LUN is created in an empty 500GB volume with the volume guarantee option set to Volume. LUNreservation is enabled and the fractional reserve is set to 100% and scheduled snapshots are disabled. Directlyafter LUN creation, what is the maximum free space available in the volume?

A. 200 GBB. 300 GBC. 400 GBD. 500 GB


Explanation/Reference:Explanation: This question uses a non-compliant configuration to test your comprehension of the effects of thevarious volume and LUN options. By selecting volume guarantee "volume" instead of "file", file reservations arenot respected. However LUN reservations are always respected, and a space-reserved LUN will be pre-allocated in the volume - i.e. it is a thick LUN - in this case using up 200GB. When fractional reserve is set to100%, the result is the same as enabling reservation on the LUN; the space is implicitly reserved. Rememberthat you cannot reserve more space than 100% of the total LUN size. The point of fractional reserve is, as thename implies, to effect a reservation less than 100% on a thin LUN. So here we have two different optionsoverlapping to produce the same result: a 200GB LUN on a 500GB volume leaving as much as 300GB freespace.

http://backdrift.org/man/netapp/man1/na_vol.1.html

vol options volname [ optname optval ]

guarantee file | volume | none

This option controls whether the volume is guaranteed some amount of disk space. The default value isvolume, which means that the entire size of the volume will be preallocated [in the aggregate]. Thefile value means that space will be preallocated for all the space reserved files and LUNs within thevolume. Storage is not preallocated for files and LUNs that are not space-reserved. Writes to these can failif the underlying aggregate has no space available to store the written data. The none value means that nospace will be preallocated, even if the volume contains space-reserved files or LUNs; if the aggregatebecomes full, space will not be available even for space-reserved files and LUNs within the volume. Notethat both the none and file settings allow for overbooking the containing aggregate aggrname. As such, it willbe possible to run out of space in the new flexible volume even though it has not yet consumed its stated

size. Use these settings carefully, and take care to regularly monitor space utilization in overbookingsituations. For flexible root volumes, to ensure that system files, log files, and cores can be saved, theguarantee must be volume. This is to ensure support of the appliance by customer support, if a problemoccurs.

Disk space is preallocated when the volume is brought online and, if not used, returned to the aggregatewhen the volume is brought offline. It is possible to bring a volume online even when the aggregate hasinsufficient free space to preallocate to the volume. In this case, no space will be preallocated, just as if thenone option had been selected. The vol options and vol status command will display the actual value of theguarantee option, but will indicate that it is disabled.

fractional_reserve <pct>

This option decreases the amount of space reserved for overwrites of reserved objects (LUNs, files) in avolume. The option is set to 100 by default and indicates that 100% of the required reserved space willactually be reserved so the objects are fully protected for overwrites. The value can vary from 0 to 100.Using a value of less than 100 indicates what percentage of the required reserved space should actually bereserved. This returns the extra space to the available space for the volume, decreasing the total amount ofspace used. However, this does leave the protected objects in the volume vulnerable to out of space errorssince less than 100% of the required reserved space is actually reserved. If reserved space becomesexhausted this will cause disruptions on the hosts using the objects. If the percentage is decreased below100%, it is highly recommended that the administrator actively monitor the space usage on the volume andtake corrective action if the reserved space nears exhaustion.


lun set reservation lun_path [ enable | disable ]

Enables or disables the space reservation on the LUN. [A space reserved LUN will occupy - or reserve -space in the volume, appearing as used space in same.]

QUESTION 16A 100-GB thinly provisioned LUN is allocated to a Windows host and then 100 GB of data is written into theLUN. The current capacity utilization on the disk array as well as the host is 100%. 50 GB of data is deletedfrom the LUN. Space reclaimer has NOT been run.

What is the current capacity utilization on both the host and the disk array?

A. 50% on the host, 100% on the disk arrayB. 100% on the host, 50% on the disk arrayC. 50% on the host, 50% on the disk arrayD. 100% on the host, 100% on the disk array

Correct Answer: ASection: (none)Explanation

Explanation/Reference:Explanation: while the host will see the space freed up by the deletion, the thin-provisioned LUN is not going toshrink on the volume until space reclamation is run.

NetApp thin provisioning is designed to allow you to present more logical storage to hosts or users than youactually have in your physical storage pool. Instead of allocating space upfront, storage space is dynamicallyallocated to each volume or LUN as data is written. In most configurations, free space is also released back toyour common storage pool when data in the volume or LUN is deleted (and is not being held by any Snapshotcopies).

https://communities.netapp.com/docs/DOC-8122

From a storage system perspective, the percentage used of a LUN will always increase and never decreaseunless space reclamation is run.

http://netappsky.com/wp-content/uploads/2010/09/Lun_Provisioning.pdf

QUESTION 17A customer has a four-node SUN cluster configuration. Each node has two dual-ported HBAs. What is theminimum number of igroups that need to be created to map a LUN to the cluster?

A. 1B. 2C. 4D. 8


Explanation/Reference:Explanation: a single igroup for all 8 HBA ports could be mapped to a single LUN.

Initiator groups (igroups) are tables of FCP host WWPNs or iSCSI host nodenames. You can define igroupsand map them to LUNs to control which initiators have access to which targets and LUNs.

Typically, you want all of the host’s HBAs or software initiators to have access to a LUN. If you are usingmultipathing software or have clustered hosts, each HBA or software initiator of each clustered host needsredundant paths to the same LUN.

You can create igroups that specify which initiators have access to the LUNs either before or after you createLUNs, but you must create igroups before you can map a LUN to an igroup.Initiator groups can have multiple initiators, and multiple igroups can have the same initiator. However, youcannot map a LUN to multiple igroups that have the same initiator.

http://hd.kvsconsulting.us/netappdoc/801docs/html/ontap/bsag/GUID-CF01DCCD-2C24-4519-A23B-7FEF55A0D9A3.html

QUESTION 18Zoning by World Wide Port Name (WWPN) is deployed and a host HBA is replaced.

Which zone change needs to be made?

A. No changes are necessary.B. The zone configuration should be changed to include the port to which the HBA is connected.C. The zone configuration should be changed to include the WWPN of the new HBA; the old WWPN will be

automatically dropped.D. The zone configuration should be changed to include the WWPN of the new HBA and to remove the

WWPN of the old HBA.


Explanation/Reference:

Explanation: Each HBA port has a unique WWPN (world wide port name). The port name has changed as aresult of the hardware change, so the zone configuration must be updated. It is better to remove the old WWPNsince it is no longer used.

A implies a WWNN or single zone configuration. B implies a switch port based zone config, not a WWPN basedzone config.C is incorrect; the WWPN will not be dropped automatically.

https://library.netapp.com/ecmdocs/ECMP1204463/html/GUID-061C8F23-A764-468A-9E3A-042AF972831D.html

QUESTION 19Which three protocols can be used for communications between a host running SnapDrive for Windows andthe NetApp Storage Controllers? (Choose three.)

A. httpB. httpsC. ftpD. RPCE. ssh

Correct Answer: ABDSection: (none)Explanation

Explanation/Reference:https://communities.netapp.com/polls/1129

API calls between the SnapDrive host and ONTAP operate over one of three transport protocols: http, https orRPC.

QUESTION 20Any newly installed system with Data ONTAP 7.3.1 supports which cfmode?

A. dual_fabric onlyB. single_imageC. partnerD. mixed


Explanation/Reference:Explanation: single_image was added in Data ONTAP 7.1 and is the default in Data ONTAP 7.2. It allows allports to host LUNs from both filers, and it makes the filer act as a single FCP device server with only 1 FCPnodename. This mode works on all filers. 7.3 will only operate in single_Image mode unless there is a previousmode configured before the system undergoes a DataONTAP update. It will take on its previous role; if youwant to change the role, it can only be changed to single_Image and cannot be returned to its mode it wasupgraded from or any other previous to 7.3 mode.

https://library.netapp.com/ecm/ecm_download_file/ECMM1278350Pg.21

Single_image is the only supported cfmode for new installations starting with Data ONTAP version 7.3. If youare upgrading to Data ONTAP 7.3 or later from a prior release, follow these guidelines:

• On legacy systems, including the 900 series, FAS200 series, and GF270c systems, you can continue touse other cfmodes that are supported on your systems. You can freely change from one supported cfmodeto any other supported cfmode on these systems. See "How to manage FCP with active/activeconfigurations" in the Block Access Management Guide for iSCSI and FCP for the list of supported cfmodesby storage system model.• On FAS20xx, 30xx and 60xx systems, you can continue to run the existing cfmode after upgrading. If youchange to single_image cfmode, you cannot revert to other cfmodes. See Changing the Cluster cfmodeSetting in Fibre Channel SAN Configurations for instructions on upgrading to single_image cfmode.

https://communities.netapp.com/thread/5751

QUESTION 21A company has deployed a NetApp dual controller FAS3100 series with iSCSI. Currently, there are fiveWindows servers and three Novell NetWare servers connected to the IP SAN. The customer wants to connectan HP-UX server to the IP SAN.

Which cfmode allows all operating systems to co-exist in the IP SAN?

A. single_imageB. standbyC. cfmode not applicableD. dual_fabric


Explanation/Reference:Cluster failover mode, or cfmode, is functionality within Data ONTAP that defines how Fibre Channel portsbehave during failover in an active/active configuration. Selecting the right cfmode is critical to ensuring your

LUNs are accessible and optimizing your storage system's performance in the event of a failover.

Although cfmode is not applicable in this scenario, single_image and dual_fabric both support all host os typesfor failover configuration.

https://library.netapp.com/ecmdocs/ECMM1278257/html/bsag/8clus-f2.htm

QUESTION 22Which native GUI switch tool is used to manage Brocade switches and directors?

A. SAN ManagerB. Enterprise Fabric ServicesC. Device ManagerD. Web Tools


Explanation/Reference:Brocade® Web Tools, an intuitive and easy- to-use interface, enables IT organizations to monitor and managesingle Brocade Fabric OS® (FOS)-based switches.

http://www.brocade.com/downloads/documents/data_sheets/product_data_sheets/WebTools_DS_10.pdf

QUESTION 23Which command will display which Brocade switches are connected into a fabric?

A. fabricshow

B. switchshow

C. show fabric

D. configshow


Explanation/Reference:FabricShow

Use this command to display information about switches in the fabric.

If the switch is initializing or is disabled, the message "no fabric" is displayed.

Running this command on an FCR or edge switch does not provide any router information; running thiscommand on an edge switch with the -membership option does provide router information.

http://www.brocade.com/downloads/documents/product_manuals/B_SAN/FOS_CmdRef_v700.pdf

QUESTION 24Which command collects detailed diagnostic information from a Brocade FC switch?

A. supportshow

B. showsupport

C. diagshow

D. showdiag


Explanation/Reference:supportShow - displays switch information for debugging purposes.

Use this command to display support information from groups of preselected Fabric OS and Linux commandsand other support and debugging information. You can specify a port or a range of ports for which to displaythis information. These commands are organized by groups, but note that the order of the groups listed below isnot the same as executed by the command.

http://www.brocade.com/downloads/documents/product_manuals/B_SAN/FOS_CmdRef_v700.pdf

diagShow - display diagnostic status (not information)

QUESTION 25Which command on a NetApp storage controller will display the average latency time on a per LUN basis everyfive seconds?

A. sysstat -i 5

B. sysstat -f 5

C. fcp stats -i 5

D. lun stats -i 5


Explanation/Reference:lun stats -i interval [ -c count ] [ -o ] [ -a | lun_path ]

The -i option will report per LUN performance statistics at the per second interval given.The default output format for -i is as follows:

Read Write Read Write Average Queue Lun Ops Ops kB kB Latency Length #### #### ##### ##### ##.## ###.## lun_pa th

http://backdrift.org/man/netapp/man1/na_lun.1.html

QUESTION 26Which command on a NetApp storage controller will display the average service time on a FC target port basisevery five seconds?

A. sysstat -i 5

B. sysstat -f 5

C. fcp stats -i 5

D. lun stats -i 5

Correct Answer: CSection: (none)

Explanation

Explanation/Reference:https://library.netapp.com/ecmdocs/ECMP1196979/html /man1/na_fcp.1.html

fcp stats -i interval [ -c count ] [ -a | adapter ]

Displays statistics about fcp adapters over the given interval. The interval is given in seconds. If no adapter isspecified, all adapters, with nonzero statistics, are shown.

The output looks like below:

fas183-4> fcp stats -i3 -c5 0c r/s w/s o/s ki/s ko/s asvc_t qlen hba 0 0 0 0 0 0.00 0.00 0c r/s w/s o/s ki/s ko/s asvc_t qlen hba 0 0 0 0 0 0.00 0.00 0c r/s w/s o/s ki/s ko/s asvc_t qlen hba 0 0 0 0 0 0.00 0.00 0c r/s w/s o/s ki/s ko/s asvc_t qlen hba 0 0 0 0 0 0.00 0.00 0c r/s w/s o/s ki/s ko/s asvc_t qlen hba 0 0 0 0 0 0.00 0.00 0c

Key:

r/s The number of SCSI read operations per second.

w/s The number of SCSI write operations per second.

o/s The number of other SCSI operations per second.

ki/s Kilobytes per second receive traffic for the HBA

ko/s Kilobytes per second send traffic for the HBA.

asvc_t Average in milliseconds to process a request through the HBA.

qlen The average number of outstanding requests pending.

hba The name of the HBA

QUESTION 27A company has five Windows servers that are dual-attached, four Linux servers that are single-attached, andten dual-attached Solaris servers. The company wants a highly available architecture. A dual controllerFAS3100 series with all onboard FC ports connected to the fabric is being proposed.

What is the total number of FC ports and what type of fabric should be deployed from the choices shown?

A. single fabric with 38 ports totalB. dual fabrics with 38 ports totalC. dual fabrics with 42 ports totalD. single fabric with 42 ports total


Explanation/Reference:Best practice calls for dual fabric. This would also be the most cost effective approach at this size.

5 x dual-port HBAs for Windows = 10 ports split across two fabrics4 x single-port HBAs for Linux = 4 ports on any fabric.10 x dual-port HBAs for Solaris = 20 ports split across two fabrics.

Each FAS3100 has 4 onboard FC ports, for a total of 8 ports split across two fabrics.

34 initiator ports and 8 target ports totalling 42.

QUESTION 28In Data ONTAP 7.3, what is a portset bound to?

A. a WWPNB. a LUNC. an igroupD. a volume


Explanation/Reference:Portsets are a collection of ports that can be associated with an igroup. Portsets are used to limit the ports thatcan be used by the initiators in the igroup to access a target lun. To associate/disassociate an igroup to/from aportset, use the igroup bind and igroup unbind commands.

https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_portset.1.html

QUESTION 29A dual controller FAS3100 series is connected to a dual fabric with two active target ports per fabric in a single-image cfmode, and uses a single portset.

What is the total number of paths for all ten LUNs on a single host with one connection to each fabric?

A. 10B. 20C. 30D. 40E. 80


Explanation/Reference:cfmode single-image

All LUNs in the active/active configuration are available on all ports in the active/active configuration by default.As a result, there are more paths to LUNs stored on the active/active configuration because any port on eachnode can provide access to both local and partner LUNs.

Each LUN has two paths per fabric from each initiator port. 4 paths x 10 LUNs = 40 paths total.

http://hd.kvsconsulting.us/netappdoc/733docs/html/ontap/bsag/GUID-31DC026F-2B78-425A-BA55-487782F9909A.html

QUESTION 30What are two performance tuning parameters available for Fibre Channel HBAs on a host? (Choose two.)

A. LUN queue depthB. HBA BootBIOS enabledC. Fibre Channel speedD. LUN device ID

Correct Answer: ACSection: (none)Explanation

Explanation/Reference:Queue depth is the number of commands that the host bus adapter (HBA) can send / receive in a single chunk- per LUN. From a host-HBA point (initiator), it is the number of commands that can be queued (or stored) andthen sent to storage.

Performance degradation starts quickly once you reach max queue depth on target and it starts backing off thequeues and it will hit hard on your response times. Also, you cannot add any further hosts and present anymore LUNs from that target port.

http://sanandnasstorage.blogspot.com/2009/08/storage-queue-depth-and-performance.html

fcp config [ adapter [ up | down ] [ mediatype { ptp auto | loop } ] [ speed { 1| 2 | 4 | 8 | auto } ] ]

The speed option is used to set the Fibre Channel link speed of an adapter. Adapters that support 8Gb/s canbe set to 2, 4, 8 or auto. Adapters that support 4Gb/s can be set to 1, 2, 4 or auto. Adapters that support 2Gb/scan be set to 1, 2 or auto. Adapters that support 10Gb/s can be set to 10 or auto. By default, the link speedoption is set to auto to enable auto negotiation. Setting the link speed to a specific value disables autonegotiation. Under certain conditions, a speed mismatch will prevent the adapter from coming online. Note thatthe actual link speed is reported in the output of fcp show adapter -v, in the Link Data Rate field, while thespeed setting is reported in the output of fcp config.

http://hd.kvsconsulting.us/netappdoc/801docs/html/ontap/cmdref/man1/na_fcp.1.htm

QUESTION 31During an equipment move a Fibre Channel cable from a host to a switch is accidentally plugged into a differentswitch port on the FC switch. However, the host still sees the storage devices on all its paths.

What are two reasons why this is possible? (Choose two.)

A. LUN masking uses switch port numbers and not WWPNs.B. The host HBA WWPN is a part of a WWPN zoning scheme.C. The Fibre Channel address for the HBA has not changed.D. The WWPN Alias was not changed on the NetApp Controllers.

Correct Answer: BDSection: (none)Explanation

Explanation/Reference:fcp wwpn-alias set [ -f ] alias wwpn

Set an alias for a wwpn (WorldWide PortName). The alias can be no more than 32 characters long and mayinclude A-Z, a-z, 0-9, `_’, ‘-’, ‘.’, ‘{‘, ‘}’ and no spaces. You may use these aliases in the other fcp and igroupcommands that use initiator portnames. Please note that you may set multiple aliases for a wwpn, but only onewwpn per alias. To reset the wwpn associated with with an alias the -f option must be used.

http://www.wafl.co.uk/tag/fcp/#sthash.JCIOctDL.dpuf

Two methods of zoning:

1. Port zoning: zoning done by grouping physical switch ports.2. WWN: worldwide Name zoning the zones are created by the WWPN(worldwide port name) or WWNN

(worldwide node name). WWPN is the preferred method.

Brocade switches only uses the hardware switch enforcement and cisco switches uses both the hardware andsoftware switch enforcement, means the in hardware enforcement everywhere will be used as WWN nameformat and it is highly performance output and if we use the software enforcement mixed WWPN and WWNNare used which does not give performance as hardware enforcement method.

http://vipulvajpayeestorage.blogspot.com/2012/07/fc-switch-configuration-of-brocade.html

QUESTION 32You connect a host to a NetApp storage system through an FC switch. The host has its boot volumes on theNetApp storage system.

What is mandatory for you to configure?

A. persistent bindingB. port zoningC. portsetsD. WWPN zoning


Explanation/Reference:Persistent binding means that a device has the same identification to the operating system after it restarts andafter other devices are added to the operating system.

By configuring persistent binding, the LUNs containing boot volumes will consistently use the same LUN ID(typically the lowest SCSI IDs) and the host system will be able to boot reliably.

http://www.redbooks.ibm.com/redbooks/pdfs/sg247958.pdf

http://www.symantec.com/business/support/index?page=content&id=TECH31246

QUESTION 33A Solaris administrator just noticed that a host has lost connectivity to the company SAN. Which file should theadministrator check for SAN connectivity errors?

A. /opt/errorlog.logB. /etc/syslogC. /var/adm/messagesD. /etc/sysevent


Explanation/Reference:In Solaris, system messages are stored in the /var/adm/messages file.

http://www.unix.com/solaris/161223-difference-between-var-log-syslog-var-adm-messages.html

QUESTION 34Which NetApp host utility command determines the number of paths per LUN visible to the host?

A. sanlun path show

B. sanlun lun show -p

C. sanlun fcp show adapter -p

D. sanlun fcp show adatper -c


Explanation/Reference:https://library.netapp.com/ecmdocs/ECMP1217221/html/GUID-F1B9F05C-E6FF-4057-B065-C9FC0C96B639.html

[root@server ~]# sanlun lun show -p

NETAPPFILER:/vol/servervol/serverlun (LUN 0) Lun state: GOOD

Lun Size: 100g (107374182400) Controller_CF_Stat e: Cluster Enabled

Protocol: FCP Controller Partner: NETAPPF ILER2

Multipath-provider: NONE--------- ---------- ------- --------------------------------------------------------- ----- ---------- sanlun Controller Primary Partner path Path /dev/ Host Controller Controller state type node HBA port port--------- ---------- ------- --------------------------------------------------------- ----- ---------- GOOD primary sdf host6 0c -- GOOD secondary sda host4 -- 0c GOOD secondary sde host6 -- 0c GOOD secondary sdc host5 -- 0d GOOD primary sdd host5 0d -- GOOD primary sdb host4

http://technologist.pro/storage/multipathing-netapp-lun-on-rhel-5-3

QUESTION 35You have a Windows 2003 host using the NetApp ONTAP DSM MPIO environment with a FAS6000 highavailability configuration running single_image cfmode.

When you disconnect a cable from the FC switch to a storage target port, how will the I/O fail over?

A. I/O will fail over to any port on the original controller but NOT on the partner controller that is part of theassociated portset. Choice of path will be controlled by the host's MPIO weighting table.

B. I/O will fail over to any port on either controller that is part of the associated portset. Choice of path will becontrolled by the host's MPIO weighting table.

C. I/O will fail over to any port on the original controller that is part of the associated portset. Choice of path willbe controlled by NetApp storage system igroup settings.

D. I/O will fail over to any port on either controller that is part of the associated portset. Choice of path will becontrolled by NetApp storage system igroup settings.


Explanation/Reference:The Data ONTAP DSM for Windows MPIO is a device-specific module (DSM) that works with MicrosoftWindows MPIO drivers (mpdev.sys, mpio.sys, and mpspfltr.sys) to manage multiple paths between Windowshost computers and NetApp storage systems.

https://library.netapp.com/ecm/ecm_download_file/ECMP1204463

cfmode single-image



QUESTION 36

A Solaris 10 host with VERITAS Storage Foundation 4.1 is FCP attached to a FAS3140 high availability storagesystem running single_image cfmode.

Using the diagram shown, which ports will be considered active by VERITAS DMP using the NetApp ASL to aLUN on Controller 1 mapped to host 1?

A. Port 0b on controller 1 onlyB. Port 0d on controller 1 onlyC. Port 0b and 0d on controller 1 onlyD. Ports 0b and 0d on both controller 1 and controller 2


Explanation/Reference:cfmode single-image



QUESTION 37Which host-based tool will enable you to stripe a LUN across multiple NetApp controllers?

A. multipathing softwareB. host-based file systemC. host-based volume managerD. HBA driver


Explanation/Reference:A host-based volume manager is a host based tool that can be used to create a striped LUN across multipleNetApp controllers.

http://www.cosonok.com/2012/02/netapp-ns0-502-study-notes-part-34-san.html

QUESTION 38What are two possible impacts to consider when changing the cfmode to single_image?. (Choose two.)

A. There more paths to LUNs.B. Target port WWPNs will change on at least one controller.C. You must use hard zoning (zoning by ports).D. There are fewer paths to LUNs.E. hosts running Solaris since it does not support single_image cfmode

Correct Answer: ABSection: (none)Explanation

Explanation/Reference:The effects of change to single_image cfmode, include:1. There are more paths to LUNs. 2. Target ports WWPNs change on at least one controller.

http://www.cosonok.com/2012_02_01_archive.html

QUESTION 39What are two functions of iSCSI access lists? (Choose two.)

A. control the network interfaces on the storage system that an initiator can accessB. define authentication parameters (CHAP)C. limits the number of network interfaces advertised by the storage systemD. define MPIO behavior


Explanation/Reference:https://library.netapp.com/ecmdocs/ECMP1196890/html/man1/na_iscsi.1.html

With the iscsi interface accesslist subcommand, the administrator can restrict an initiator to

certain network interfaces. This is useful in environments where a particular initiator cannot access all of thenetwork interfaces on a filer, for example in configurations that use IEEE 802.1Q Virtual LANs (VLANs).

An accesslist for an initiator is a list of network interfaces that the initiator is allowed to use for iSCSI logins.Accesslists are recorded as part of the filer configuration and are preserved across reboots. In addition,separate accesslists are maintained for each vfiler.

The rules for accesslists are:

* If a network interface is disabled for iSCSI use (via iscsi interface disable), then it is not accessible to anyinitiator regardless of any accesslists in effect.

* If there is no accesslist for a particular initiator, then that initiator can access any iSCSI-enabled networkinterface.

* If there is an accesslist for a particular initiator, then that initiator can only login to network interfaces in itsaccesslist. Furthermore, the initiator cannot discover IP addresses to which it does not have access. If aninitiator logs into an accessible network interface for a discovery session and sends an iSCSI SendTargetscommand, the filer will respond with a list of network portals that includes only IP addresses from networkinterfaces that are in its accesslist.

* If an initiator has no accesslist and an iscsi interface accesslist add command is invoked for that initiator, anaccesslist is created. If an initiator has an accesslist and all of its interfaces are removed via an iscsi interfaceaccesslist remove operation, then the accesslist itself is deleted.

* Creating or modifying an accesslist may require shutting down existing iSCSI sessions associated withnetwork interfaces that no longer appear on the accesslist. For example, creating a new accesslist via the addoperation may cause sessions to be shut down on network interfaces that are not in the new accesslist.Likewise, removing network interfaces from an existing accesslist via the remove operation may also causesessions to be shut down. The add and remove subcommands warn the user if iSCSI sessions could beaffected. Note that adding all interfaces (add -a) and removing all interfaces (remove -a) will not affect anyiSCSI sessions

The following subcommands manage accesslists:

iscsi interface accesslist show [ { -a | <initiator_name> ...} ]

Show the accesslist for each of the named initiators (or all initiators if -a is specified).

iscsi interface accesslist add [-f] <initiator_name> {-a | <interface> ...}

Add the named network interfaces (or all interfaces if -a is specified) to the accesslist for the specified initiator.If there is no accesslist, one will be created.

This command prompts for confirmation if any active sessions will be affected, unless the -f flag is specified.

iscsi interface accesslist remove [-f] <initiator_name> {-a | <interface> ...}

Remove the named network interfaces (or all interfaces if -a is specified) from the accesslist for the specifiedinitiator. If this command leaves the initiator's accesslist empty, the accesslist itself is removed. This commandprompts for confirmation if any active sessions will be affected, unless the -f flag is specified.

QUESTION 40What is the significance of using a specific LUN type when creating LUNs manually on a NetApp storagesystem?

A. The LUNs offset, size of the prefix and suffix is determined by the LUN type, which differs for differentoperating systems.

B. The LUN types are merely for administrative ease of use and the LUN types can be changed on the fly aftercreation.

C. The LUN types allow the appropriate host operating systems to use the LUN. For example, a VMware typeLUN cannot be read from /written to using a Solaris host.

D. The host operating system will panic when the "wrong" LUN type is selected on the NetApp storage system.


Explanation/Reference:https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_lun.1.htmlhttps://library.netapp.com/ecmdocs/ECMP1196995/html/GUID-7D4DD6E3-DB77-4671-BDA2-E393002E9EB2.html

The ostype (sometimes called LUN multiprotocol type) specifies the OS of the host accessing the LUN. It alsodetermines the layout of data on the LUN, the geometry used to access that data, and the minimum andmaximum size of the LUN.

lun create -s size -t ostype [ -o noreserve ] [ -e space_alloc ] lun_path

[...] The mandatory ostype argument is one of: solaris (the LUN will be used to store a Solaris raw disk in asingle-slice partition), windows (the LUN will be used to store a raw disk device in a single-partition Windowsdisk using the MBR (Master Boot Record) partitioning style), hpux (the LUN will be used to store HP-UX data),aix (the LUN will be used to store AIX data), vld (the LUN contains a SnapManager VLD), linux (the LUN willbe used to store a Linux raw disk without any partition table), netware (the LUN will be used to store NetWaredata), vmware (the LUN will be used to store VMware data), windows_gpt (the LUN will be used to storeWindows data using the GPT (GUID Partition Type) partitioning style), windows_2008 (the LUN will be used tostore Windows data for Windows 2008 systems), openvms (the LUN will be used to store Open-VMS data),xen (the LUN will be used to store Xen data), hyper_v (the LUN will be used to store Hyper-V data),solaris_efi (the LUN will be used to store Solaris_EFI data).

Note: For raw LUNs, you can use the type of the child operating system as the LUN multiprotocol type.

QUESTION 41Which three tasks can SnapDrive perform? (Choose three.)

A. expand LUNs on the flyB. perform SnapVault updates of qtrees to a SnapVault destinationC. utilize SnapMirror to replicate individual qtreesD. manage quotas on qtreesE. perform iSCSI session management

Correct Answer: ABESection: (none)Explanation

Explanation/Reference:SnapMirror and qtrees are storage system level objects. SnapDrive functionality is limited to actions directlyrelated to LUNs mounted on the host.

SnapDrive provides the following additional features:• It enables online storage configuration, LUN expansion, and streamlined management.• It enables connection of up to 168 LUNs.• It integrates Data ONTAP Snapshot technology, which creates point-in-time images of data stored onLUNs.

• It enables support on Microsoft cluster configurations.• It enables iSCSI session management.

http://www.support.artisan.tv/downloads/Direct_Storage_Access_Using_NetApp_SnapDrive_v1.0.pdf

Enables SnapVault updates of qtrees to a SnapVault destination

http://www.redbooks.ibm.com/redpapers/pdfs/redp4487.pdf

QUESTION 42When planning for fault tolerant power connections, how should each device to be connected?

A. with a single power feedB. with dual power feedsC. with dual power feeds connected to separate outletsD. with dual power feeds connected to separate circuits


Explanation/Reference:Connecting two power feeds to separate outlets on the same circuit creates a single point of failure for aredundant system. Using multiple circuits allows for fault tolerance and maintenance.

QUESTION 43A company has FC patch panels in their data center. They plan on using them to interconnect their storagecontrollers to the FC switches and the hosts using the storage. They have 62.5 micron cable between the patchpanels.

Which cable should you use on the NetApp storage controller's Target Ports to make this a supportedconfiguration?

A. long wave SFPs, 62.5 micron FC cableB. short wave SFPs, 50 micron FC cableC. short wave SFPs, 62.5 micron FC cableD. long wave SFPs, 50 micron FC cable


Explanation/Reference:In a FC environment utilizing 62.5 micron cable between patch panels – supported NetApp storage controllerconfiguration is to use: short wave SFPs with 62.5 micron FC cable.


QUESTION 44NetApp supports multiple FC paths from the host to the NetApp storage controllers. In addition to using multipleFC switches, which other NetApp supported components should you use for this type of configuration?

A. multipathing host software, multiple storage controllers with multiple target ports eachB. HBA with driver and firmware, multiple storage controllers with multiple target ports each

C. HBA with driver and firmware, multipathing host software, multiple storage controllers with multiple initiatorports each

D. HBA with driver and firmware, multipathing host software, multiple storage controllers with multiple targetports each


Explanation/Reference:The best answer is the most complete. The NetApp interoperability matrix includes:

- Host HBA- Host Multipathing software

The preferred method for implementing a storage system employs multiple storage controllers in an HA pairwith multiple target ports on each storage controller.

Multipath HA provides redundancy for the path from each controller to every disk shelf in the configuration. It isthe preferred method for cabling a storage system.

An HA pair without multipath HA has only one path from each controller to every disk, but an HA pair withmultipath HA has two paths from each controller to each disk, regardless of which node owns the disk.

The following diagram shows the connections between the controllers and the disk shelves for an example HApair using multipath HA. The redundant primary connections and the redundant standby connections are theadditional connections required for multipath HA for HA pairs.

QUESTION 45A company has an assortment of operating systems in their environment. Which operating system is NOTcurrently supported by NetApp for their FC solutions?

A. Windows 2008 ServerB. Solaris 10C. Windows NTD. IBM AIX



The ostype (LUN multiprotocol type) options and when each should be used are listed below:

solarisSolaris_efi windows windows_gptwindows_2008 hpuxaixlinuxnetwarevmwarexenhyper_v

https://library.netapp.com/ecmdocs/ECMP1196995/html/GUID-7D4DD6E3-DB77-4671-BDA2-E393002E9EB2.html

QUESTION 46Which components must you configure when configuring CHAP to be used with iSCSI?

A. host, Ethernet switch, storage controllersB. host and storage controllers onlyC. host onlyD. storage controllers only


Explanation/Reference:ONTAP supports the configuration of default and per-initiator authentication parameters; these parameters areused during the iSCSI connection login phase. Initiators may be allowed access only after successfullyperforming the CHAP authentication procedure; or may be allowed access without CHAP authentication; ordenied access.

iscsi security add -i <initiator> -s CHAP -p <inpassword> -n <inname> [ -o<outpassword> -m <outname> ]

Configure the initiator with CHAP as the authentication method. The -p option is used to specify the inboundCHAP password and the -n option to specify the inbound CHAP username. The -o option is used to specify theoutbound CHAP password and the -m option is used to specify the outbound CHAP name. The outboundCHAP password and username are optional and need to be configured if mutual authentication is desired. If thepassword is not specified on the command line then the administrator is prompted for the password twice.

http://wafl.co.uk/iscsi/#sthash.76dwm6mG.dpuf

QUESTION 47What should you do to verify FC connectivity between the host and the FC switch?

A. ping the FC switch Ethernet port from the hostB. check the FC switch for light on the FC portC. check the FC switch for the WWPN of the host HBAD. check the FC switch for the port type of the host port


Explanation/Reference:To verify FC connectivity between host and FC switch – check FC switch for WWPN of host HBA.


QUESTION 48What is the appropriate method for testing high availability controller failover?

A. pull a power cord from a power supply on a controllerB. shut down a controllerC. issue the takeover command from a controllerD. issue the giveback command from a controller


Explanation/Reference:Doing "cf takeover "/"cf giveback " is an essential step in testing NetApp system configuration for basicHA features before putting it in production.


QUESTION 49Which three statements are true about Asymmetric Logical Unit Access (ALUA)? (Choose three.)

A. It is a set of SCSI commands for discovering and managing multiple paths to LUNs on Fibre Channel andiSCSI SANs.

B. It requires Array Support Library (ASL), a proprietary vendor library.C. It allows the initiator to query the target about path attributes, such as primary path and secondary path.D. It no longer requires proprietary SCSI commands.E. It works in standby and single_image cfmodes.

Correct Answer: ACDSection: (none)Explanation

Explanation/Reference:ALUA (Asymmetric Logical Unit Access) is a set of SCSI commands for discovering and managing multiplepaths to LUNs of Fibre Channel and iSCSI SANs. It allows the initiator to query the target about path attributes,such as primary path and secondary path. ALUA no longer requires proprietary SCSI commands.

Disable ALUA on igroups connecting using the NetApp DSM


QUESTION 50For which four operations would you use igroup throttles on a NetApp storage solution? (Choose four.)

A. to assign a specific percentage of the queue resources on each physical port to the igroup

B. to manage pathing to the LUNsC. to reserve a minimum percentage of queue resources for a specific igroupD. to limit the number of concurrent I/O requests an initiator can send to the storage systemE. to restrict an igroup to a maximum percentage of useF. to manage space reclamation

Correct Answer: ACDESection: (none)Explanation

Explanation/Reference:Use igroup throttle on a NetApp storage solution to:

Assign a specific percentage of queue resources on each physical port to the igroup.Reserve a minimum percentage of queue resources for a specific igroup. Limit number of concurrent I/O requests an initiator can send to the storage system. Restrict an igroup to a maximum percentage of use.


QUESTION 51A company is planning to use physical Raw Device Mappings (RDMs) in their ESX environment. Which LUNtype should they use on the NetApp storage system if they want to prevent LUN I/O alignment issues?

A. They should use the VMware LUN type.B. They should use the LUN type matching the guest operating system.C. ESX will automatically align I/O on WAFL boundaries if NetApp host utilities is installed.D. Any UNIX LUN type will work since it is an RDM.


Explanation/Reference:Historically, hard drives (LUNs) presented the OS with a logical geometry that would be used to partition andformat the disk in an efficient manner. Logical geometry today is virtual and fabricated by the host BIOS andoperating system. Operating partitioning programs such as fdisk use the fake disk geometry to determinewhere to begin a partition. Unfortunately, some partitioning programs create disk partitions that do not align tounderlying block boundaries of the disk. Notable examples of this are the GNU fdisk found on many Linux®distributions and Microsoft Diskpart found on Windows 2000 and Windows 2003.

NetApp uses 4KB blocks (4 x 1,024 = 4,096 bytes) as its basic storage building block. Write operations canconsume no less than a single 4KB block and can consume many 4KB blocks, depending on the size of thewrite operation. Ideally, the guest/child OS should align its file systems so that writes are aligned to the storagedevice‘s logical blocks. The problem of unaligned LUN I/O occurs when the partitioning scheme used by thehost OS doesn‘t match the block boundaries inside the LUN, as shown in Figure 15. If the guest file system isnot aligned, it might become necessary to read or write twice as many blocks of storage than the guest actuallyrequested since any guest file system block actually occupies at least two partial storage blocks. As a simpleexample, assuming only one layer of file system and that the guest allocation unit is equal to the storage logicalblock size (4K or 4,096 bytes), each guest block (technically an "allocation unit") would occupy 512 bytes of oneblock and 3,584 bytes (4,096–512) of the next.

This results in inefficient I/O because the storage controller must perform additional work such as readingadditional data to satisfy a read or write I/O from the host.

http://www.netapp.com/us/media/tr-3702.pdf

QUESTION 52

What is the functionality of the latest Data ONTAP DSM for Windows?

A. It can handle FCP and iSCSI paths to the same LUN.B. It allows you to take snapshots for both FCP and iSCSI LUNS.C. It allows you to enable ALUA on the igroup from the host.D. It allows you to create new LUNs from the host.


Explanation/Reference:In fact, with the ONTAP DSM 3.2 you can have a mix of iSCSI and FCP paths to the same LUN on a windowsbox.


QUESTION 53

In the diagram shown, a portset is created on controller 1 with the command: controller1>portset create -fntapportset conroller1:0b. This portset is bound to the igroup with all the intiators in it. How many paths can thehost 1 see to a LUN on controller 1?

A. six pathsB. four pathsC. three pathsD. one path



QUESTION 54When assessing a current storage solution, it is critical to document the current NetApp storage systemconfiguration.

Which factor should NOT be considered when documenting this existing configuration?

A. Data ONTAP versionB. current data layout (RAID groups, aggregates, volumes, etc...)C. storage system name and IPD. host power cables and power usage


Explanation/Reference:NETAPP SYSTEM MANAGER

To view system details, click the controller name in the left pane. The dashboard view that opens displayssystem properties including name, IP address, model, system ID, Data ONTAP® version, system uptime, andnumber of volumes, aggregates, and disks.


QUESTION 55Which command do you use on a Brocade switch to view all defined zone configuration information?

A. cfgActvShowB. show zoneC. cfgshowD. switchshow


Explanation/Reference:cfgshow > To view all defined zone configuration information

http://exchangeengine.wordpress.com/2011/05/05/usefull-brocade-san-switch-commands/

QUESTION 56Which command do you use on a Cisco switch to view the currently active zoneset?

A. show zone analysisB. show zoneset activeC. show running-configD. show config active


Explanation/Reference:show zoneset active - displays information about the active zone set

http://www.cisco.com/en/US/products/ps5989/prod_troubleshooting_guide_chapter09186a008067a309.html

QUESTION 57When building your implementation plan, providing dual power for all systems is critical.

Which three actions should be mandated? (Choose three.)

A. Dual power supplies should be placed in all equipment.B. Dual power feeds should be run to all equipment.C. Power feeds should be connected to the closest available outlet inside the cabinet.D. Power feeds should be connected to separate circuits on the same data center PDU.E. Power feeds should be connected to separate outlets connected to two separate PDUs.

Correct Answer: ABESection: (none)Explanation


QUESTION 58What information needs to be included in a cabinet diagram? (Choose three.)

A. NetApp storage system login informationB. physical location of the rack in the data centerC. storage controller configuration informationD. rack identifying informationE. location in the rack of NetApp storage controllers and storage shelves

Correct Answer: BDESection: (none)Explanation

Explanation/Reference:Cabinet diagram information:

Physical location of the rack in the datacenter.

Rack identifying information. Location in the rack of NetApp storage controllers and storage shelves. Switch placement. Storage shelf connectivity.


QUESTION 59

In the cabinet diagram shown, what additional information should be included to make it more complete?

A. switch connectivity

B. storage port connectivityC. storage shelf connectivityD. storage controller rack placement



Physical location of the rack in the datacenter. Rack identifying information. Location in the rack of NetApp storage controllers and storage shelves. Switch placement. Storage shelf connectivity.


QUESTION 60What is NetApp's recommended best practice for zone configuration?

A. All zones should contain a single initiator and all the targets that initiator accesses.B. Individual zones can get too complicated. It is better to simply configure one default zone with all devices

contained in it.C. All devices from the same vendor should be in one zone.D. All zones should contain a single target and all the initiators using that target.


Explanation/Reference:NetApp recommended best practice for zone configuration: All zones should contain a single initiator and all thetargets that initiator accesses.

NetApp recommends zoning by World Wide Port Name.

For a Host connected to a NetApp storage system through an FC switch, which has boot volumes on theNetApp storage system, a persistent binding is a mandatory configuration.


QUESTION 61

In the diagram shown, how should the zoning configuration be changed to better comply with NetApp bestpractices?

A. four zones, each with one initiator, first two with the first target port and the second two with the secondtarget port

B. two zones, each with two initiators and one target portC. two zones, each with all four initiators and one target portD. four zones, each with one initiator and both target ports






QUESTION 62Which type of zoning does NetApp recommend?

A. World Wide Name zoningB. World Wide Port Name zoningC. World Wide Node Name zoningD. Switch World Wide Name zoning






QUESTION 63What does NetApp recommend as best practice for zone configuration?

A. single target zoningB. single initiator zoningC. multiple initiator zoningD. single port zoning






QUESTION 64

Given the information shown in the diagram, which port has a NetApp device attached to it?

A. port 3B. port 5C. port 6D. port 7


Explanation/Reference:All FCP adapters must be down before the nodename can be changed. When selecting a new nodename, usethe following format to fit with NetApp’s registered names: 50:0a:09:80:8X:XX:XX:XX where XX:XX:XX is someintegral value.

http://www.wafl.co.uk/tag/fcp/

QUESTION 65.In a NetApp SAN solution, which value should you set for snap reserve for a volume holding LUNs?

A. 100%B. 50%C. 20%D. 0%


Explanation/Reference:Use the snap reserve command to set Snapshot reserve to 0.

snap reserve vol1 0

Use the snap reserve command to verify the Snapshot reserve has been set to 0.

snap reserve vol1

https://library.netapp.com/ecmdocs/ECMP1196995/html /GUID-E72B5DD4-835F-4965-9F6E-81BFF382C37B.html

QUESTION 66Which command do you use to see the rate of change between two successive Snapshot copies in a flexible

volume in Data ONTAP?

A. snap diffB. snap calculateC. snap deltaD. snap space


Explanation/Reference:snap delta [ vol_name [ snapshot-name ] [ snap_shot-name ]]

Displays the rate of change of data between snapshots. When used without any arguments it displays the rateof change of data between snapshots for all volumes in the system, or all aggregates in the case of snap delta -A. If a volume is specified, the rate of change of data is displayed for that particular volume. The query can bemade more specific by specifying the beginning and ending snapshots to display the rate of change betweenthem for a specific volume. If no ending snapshot is listed, the rate of change of data between the beginningsnapshot and the Active File System is displayed.

http://backdrift.org/man/netapp/man1/na_snap.1.html

QUESTION 67Which statement is true about single_image cfmode?

A. Both nodes in the active-active configuration function as separate Fibre Channel nodes, and the LUN mapsare not shared between the partners.

B. Both nodes in the active-active configuration function as a single Fibre Channel node, and the LUN mapsare shared between the partners.

C. Both nodes in the active-active configuration function as a single Fibre Channel node, and the LUN mapsare not shared between the partners.

D. Both nodes in the active-active configuration function as separate Fibre Channel nodes, and the LUN mapsare shared between the partners.


Explanation/Reference:The single_image cfmode setting is available starting with Data ONTAP 7.1, and is the default setting startingwith Data ONTAP 7.2. In single_image cfmode, an active/active configuration has a single global WWNN, andboth systems in the configuration function as a single FC node. Each node in the configuration shares thepartner node's LUN map information.


QUESTION 68What are two functions provided by the NetApp Host Utilities Kits? (Choose two.)

A. They provide the ability to take snapshots of local file systems.B. They provide properly set disk and HBA timeout values.C. They identify and set path priorities for NetApp LUNs.D. They provide SnapMirror/SnapVault integration.ns.

Correct Answer: BCSection: (none)Explanation

Explanation/Reference:The Host Utilities support multiple FC (Fibre Channel) paths, multiple iSCSI paths, or a combination of FC andiSCSI paths.

Configure multiple paths to ensure a highly available connection between the Windows host and storagesystem.

On systems using FC, the Host Utilities installer sets the required timeout values for Emulex and QLogic FCHBAs. If Data ONTAP DSM for Windows MPIO is detected on the host, the Host Utilities installer does not setany HBA values.


QUESTION 69

When should you define the space management policy that is shown in the table?

A. when you want to thin provision the LUNs and make the volume size less than the LUN sizeB. when you want Data ONTAP to start deleting Snapshots to recover space from the volume before growing

the volumeC. when you want to set aside overwrite reserve space for the LUNs so that writes never fail with the presence

of SnapshotsD. when you want to guarantee space for Snapshots by letting the volume autogrow


Explanation/Reference:Process of elimination:

when you want Data ONTAP to start deleting Snapshots to recover space from the volume before growingthe volume (try_first = autogrow)when you want to set aside overwrite reserve space for the LUNs so that writes never fail with the presenceof Snapshots (fractional_reserve = 0%)when you want to guarantee space for Snapshots by letting the volume autogrow (snap_reserve = 0%)

QUESTION 70

Which three tasks should be completed as part of the site preparation for install? (Choose three.)

A. plan zoning configurationB. verify equipment move pathC. determine aggregate layoutD. verify power drops in the equipment locationE. make contact with data center personnel

Correct Answer: BDESection: (none)Explanation

Explanation/Reference:Prepare site for installation.

Be able to review implementation flowchart with customer and assign task areas.Make contact with datacenter/site personnel.Validate equipment move path to installation location.Verify site infrastructure including: dual power (and proximity of power drops to the install location), floorspace, floor loading plan, HVAC (Heating, ventilation, and air conditioning.)Validate logistics plan for staging and installation of equipment.Verify Ethernet cabling plan and availability of cable supports.Verify fiber cabling plan and availability of cable supports.


QUESTION 71Which task is part of the site preparation for installation?

A. configure zoningB. install equipment in rackC. verify equipment move pathD. verify host to storage connectivity


Explanation/Reference:Prepare site for installation.

Be able to review implementation flowchart with customer and assign task areas.Make contact with datacenter/site personnel.Validate equipment move path to installation location.Verify site infrastructure including: dual power (and proximity of power drops to the install location), floorspace, floor loading plan, HVAC (Heating, ventilation, and air conditioning.)Validate logistics plan for staging and installation of equipment.Verify Ethernet cabling plan and availability of cable supports.Verify fiber cabling plan and availability of cable supports.



QUESTION 72Which software feature must be supported and configured on the NetApp storage controller to configuremultipath high availability between the storage controller and disk shelves?

A. MetroClusterB. Software Disk OwnershipC. Snapshot copiesD. Single System Image cfmode


Explanation/Reference:Disk ownership is established by Data ONTAP or the administrator rather than by which disk shelf the disk isattached to.


QUESTION 73Which three does NetApp support for iSCSI with Microsoft Windows solutions? (Choose three.)

A. VLANsB. Jumbo framesC. NIC teamingD. Microsoft MCSE. NIC trunking


Explanation/Reference:Support for a wide range of industry standard performance features including Jumbo frames and iSCSI MCS

iSCSI Multi-Connection Sessions (MCS)

The iSCSI specification provides for an optional feature referred to as Multi-Connection Sessions (MCS). iSCSIdefines the concept of an iSCSI initiator establishing a session with an iSCSI target. MCS allows for this singleiSCSI session to utilize multiple TCP connections.

http://download.microsoft.com/download/F/B/3/FB38CA2C-6694-4D25-8452-4A28668A87F2/MSFT-NetApp-10G.docx

QUESTION 74Which topology allows for guaranteed maximum network performance for iSCSI?

A. isolated VLAN networkB. MetroWAN networkC. direct connectD. WAN network


Explanation/Reference:A direct connect topology allows for guaranteed maximum network performance for iSCSI.


QUESTION 75You are installing a NetApp FAS6040 high availability storage system. Which cfmode should be set to ensureproper failover in an HP-UX environment?

A. standbyB. partnerC. single_image systemD. dual_fabric


Explanation/Reference:The single_image cfmode setting is available starting with Data ONTAP 7.1, and is the default setting startingwith Data ONTAP 7.2. In single_image cfmode, an active/active configuration has a single global WWNN, andboth systems in the configuration function as a single FC node. Each node in the configuration shares thepartner node's LUN map information.

All LUNs in the active/active configuration are available on all ports in the active/active configuration by default.As a result, there are more paths to LUNs stored on the active/active configuration because any port on eachnode can provide access to both local and partner LUNs. You can specify the LUNs available on a subset ofports by defining port sets and binding them to an igroup. Any host in the igroup can access the LUNs only byconnecting that to the target ports in the port set.


QUESTION 76You are creating an acceptance test plan and the subject of performance is raised. How should you define whatthe minimum performance should be?

A. You should look up the test results for a similar system in previous performance testing and use thosenumbers.

B. You should work with the customer to understand their performance expectations and determine theminimum performance they require for the application this system will support.

C. You should use the published maximum performance specifications for this system.D. You should use the published minimum performance specifications for this system.


Explanation/Reference:Acceptance Test Plan: To define what the minimum performance should be, work with the customer tounderstand their performance expectations and determine the minimum performance they require for theapplication(s) this system will support.


QUESTION 77Which type of multipathing does Linux support?

A. dm_mpB. dsmC. mpioD. mcs


Explanation/Reference:The latest OS Native multipathing solution is Device Mappper-Multipath (DM-Multipath) available with Red HatEnterprise Linux 4.0 U2 and SuSE SLES 9.0 PS2 (and versions beyond).

http://storagefoo.blogspot.com/2006/08/linux-native-multipathing-device.html

QUESTION 78You need to gather information from the host systems that will be attached to the NetApp storage system usingeither FC or iSCSI. This information includes operating system version, patch levels, open bus slots, and cardsin bus slots.What other information must you gather from the host systems?

A. bus type (PCIe and/or PCI-x) and video adaptersB. memory in system and Ethernet ports (both used and free)C. bus type (PCIe and/or PCI-x) and Ethernet ports (both used and free)D. bus type (PCIe and/or PCI-x) and Serial ports (both used and free)


Explanation/Reference:Information gathering for host systems to be attached to NetApp storage systems using either FC or iSCSI:

OS VersionPatch LevelOpen Bus SlotsCards in Bus SlotsBus Type (PCIe and/or PCI-x,) Ethernet Ports (both used and free)


QUESTION 79Which four FC fabric topologies does NetApp support? (Choose four.)

A. four FC switches with multiple Inter-Switch Links (ISLs) between each pair of switchesB. ten FC switches per fabric, daisy chained with a single ISL between switches

C. four FC switches with multiple ISLs between ALL switchesD. eight FC switches with no more than a single ISL between switches in a cascade topologyE. dual FC switches with no ISLsF. a single FC switchG. a switched fabric that has 65537 ports

Correct Answer: ACEFSection: (none)Explanation

Explanation/Reference:For a fault tolerant FC solution utilize multiple FC switches, multiple NetApp storage controllers with multipletarget ports each, dual port host FC HBAs with driver and firmware, and multipathing host software.

FC fabric topologies that NetApp supports: A single FC switch. Dual FC switches with no ISLs (Inter-Switch Links.) Four FC switches with multiple ISLs between each pair of switches. Four FC switches with multiple ISLs between ALL switches.


QUESTION 80For which two purposes would the use of VLAN's be beneficial? (Choose two.)

A. to isolate iSCSI traffic from LAN/WAN trafficB. to separate LAN from WAN trafficC. to isolate management traffic from other IP trafficD. to isolate UDP from TCP traffic in the IP networkE. to isolate SSH traffic from other IP traffic


Explanation/Reference:VLANs are a standard layer 2 mechanism for segmenting and effectively isolating application traffic. Data onone VLAN cannot be seen or accessed by data traversing another VLAN, they are effectively separate streams.

Common best practices are to isolate IP storage traffic from other protocols, for performance and security. It isalso beneficial to isolate management traffic to a restricted VLAN.

https://devcentral.f5.com/articles/virtualization-how-to-isolate-application-traffic#.UiyA6zAgZBU

QUESTION 81A company wants to use jumbo frames to improve performance with their iSCSI network. When setting up theEthernet switches for jumbo frames, which three components need to be configured? (Choose three.)

A. Ethernet port on Management ConsoleB. Ethernet port on RLMC. Ethernet port on host systemD. Ethernet port on storage deviceE. Ethernet port on FC switchF. Ethernet switch ports being used

Correct Answer: CDFSection: (none)Explanation

Explanation/Reference:Jumbo frames are TCP frames where MTU size is more than the IEEE standard of 1500 bytes. There are lotsof variations in that and anything from 1500 to 12000 can be configured, be called as jumbo frames. Howevermost of the industry uses MTU size of 9000 for jumbo frames due to support from most of the devicemanufacturers

To use jumbo frames, all devices and switches in the network should be configured to process large frames.

http://netapp-blog.blogspot.com/2009/08/jumbo-frames-in-netapp.html

QUESTION 82A company wants to use jumbo frames in their Ethernet network. They should set the packet size to whichindustry conventional value?

A. 1200B. 1500C. 9000D. 12000


Explanation/Reference:Jumbo frames are TCP frames where MTU size is more than the IEEE standard of 1500 bytes. There are lotsof variations in that and anything from 1500 to 12000 can be configured; these are called jumbo frames.However most of the industry uses MTU size of 9000 for jumbo frames due to support from the majority ofdevice manufacturers - most notably Cisco.

To use jumbo frames, all devices and switches in the network should be configured to process large frames.

http://netapp-blog.blogspot.com/2009/08/jumbo-frames-in-netapp.html

QUESTION 83What is the default Ethernet packet size (or MTU - Maximum Transmission Unit) for Ethernet ports on Ethernetswitches?

A. 2112 bytesB. 9000 bytesC. 1500 bytesD. 12000 bytes


Explanation/Reference:The maximum packet size allowed at the network layer is 1500 bytes, which is why the default MTU for allEthernet ports is 1500. Some high performance LANs can handle large MTUs (called Jumbo Frames), whichcan be desirable for certain implementations.

http://en.wikipedia.org/wiki/Maximum_transmission_unithttp://netapp-blog.blogspot.com/2009/08/jumbo-frames-in-netapp.html

QUESTION 84When setting up a VLAN for administrative security purposes, which four ports are the only important ports toinclude in the VLAN? (Choose four.)

A. Storage Controllers Management Ethernet portsB. FC Switches Management Ethernet portC. Hosts iSCSI HBA Ethernet portD. Ethernet Switches Management portE. Storage Controller iSCSI Ethernet Target portsF. Hosts NIC Management Ethernet port

Correct Answer: ABDFSection: (none)Explanation

Explanation/Reference:Ports to include in a VLAN for administrative security purposes:

Storage Controllers Management Ethernet port. FC Switches Management port. Ethernet Switches Management port. Hosts Management Ethernet port.


QUESTION 85You are booting a NetApp storage system for the first time. In which order should the various components bepowered on?

A. any tape backup devices, disk shelves, network switches, NetApp controller headsB. NetApp controller heads, disk shelves, any tape backup devices, network switchesC. NetApp controller heads, disk shelves, network switches, any tape backup devicesD. network switches, disk shelves, any tape backup devices, NetApp controller heads


Explanation/Reference:Power on order:

Network Switches. Disk Shelves Any Tape Backup DevicesNetApp Controller Heads.

If a NetApp storage system fails on its first boot; check for a description of the problem on the LCD andconsole, and follow the instructions.


QUESTION 86When booting your NetApp storage system for the first time the system fails to boot.

What should you do first to address this problem?

A. You turn off your storage system and disk shelves, and then turn on the disk shelves. You then check thequick reference card that came with the disk shelf for information about LED responses.

B. You re-download the boot image to the compact flash card, then reboot the system.C. You look for a description of the problem on the LCD and console. You then follow the instructions, if

provided, on the LCD and console.D. You verify disk shelf compatibility and check the disk shelf IDs to verify that the disk shelf 1 (for DS14

series) must be connected to your system.


Explanation/Reference:Power on order:

Network Switches. Disk Shelves Any Tape Backup DevicesNetApp Controller Heads.

If a NetApp storage system fails on its first boot; check for a description of the problem on the LCD andconsole, and follow the instructions.


QUESTION 87After completing the configuration of a new Brocade Fibre Channel switch, which command do you use to verifyyour configuration?

A. switchshow

B. show config

C. configshow

D. cfgshow


Explanation/Reference:Configshow identify the configuration of a brocade switch

http://exchangeengine.wordpress.com/2011/05/05/usefull-brocade-san-switch-commands/

QUESTION 88Which native GUI switch tool is used to manage Cisco MDS-Series switches and directors?

A. Operations ManagerB. Fabric ManagerC. Web ToolsD. Data Fabric Manager


Explanation/Reference:Cisco Fabric Manager simplifies administration of large fabrics, and centralizes management and control ofCisco storage networks.

http://www.cisco.com/en/US/products/ps10495/index.html

QUESTION 89Which configuration for primary block (FC and iSCSI) data does NetApp best practices recommend? (Choosetwo.)

A. single controller single shelfB. single controller multiple shelvesC. dual controller single shelfD. dual controller multiple shelves

Correct Answer: CDSection: (none)Explanation

Explanation/Reference:NetApp best practice for primary block data (FC and iSCSI):

Dual controller and single shelf. Dual controller and multiple shelves.


QUESTION 90When running diagnostic tests after an initial installation of a NetApp FAS3000 storage system, whichcommand is used to run a comprehensive set of diagnostic tests on the entire system?

A. allB. comprehensiveC. fullD. stress


Explanation/Reference:-a = all

QUESTION 91You are about to replace a failed Brocade Fibre Channel switch. Which three steps do you take prior toconnecting the switch in the SAN? (Choose three.)

A. Force the new switch to be the principle switch.B. Change the domain ID of the replacement switch to the domain ID of the failed switch.C. Clear all zoning configurations on the replacement switch.D. Change the core PID format of the replacement switch to the core PID format of the failed switch.E. Preload the zoning information from the fabric onto the new switch.

Correct Answer: BCDSection: (none)Explanation


Steps prior to replacing a failed Brocade FC Switch: Change the domain ID of the replacement switch to the domain ID of the failed switch. Clear all zoning configuration on the replacement switch. Change the core PID format of the replacement switch to the core PID format of the failed switch.

When hard zoning (domain ID plus port) is in use and a host HBA is replaced, no changes need to be madeprovided the new HBA is connected to the same port.


QUESTION 92At which storage object level is deduplication enabled?

A. AggregateB. VolumeC. QtreeD. LUN


Explanation/Reference:De-dup scan is volume-wide, although metadata is stored in an aggregate. In other words, two (or more) identical blocks within the same volume will be reduced to one, whilst two (ormore) identical blocks in different volumes will not be de-duplicated.

https://communities.netapp.com/message/62411

QUESTION 93Which commands allow you to enable NetApp deduplication and verify space savings?

A. sis on <vol> , sis start <vol> , df -s <vol>

B. asis on <vol> , asis start <vol> , df -s <vol>

C. sis on <vol> , sis start <vol> , df -r <vol>

D. sis on , sis start , df -p <vol>


Explanation/Reference:Once deduplication is licensed, then you can enable it on a per-volume basis using the “sis on” command:

sis on /vol/<volname>

After it’s finished running, you can see your space savings like this:

df -s /vol/<volname>

http://blog.scottlowe.org/2008/03/31/quick-guide-to-setting-up-netapp-deduplication/

Already existing data could be processed by running:

sis start -s /vol/<volname>

http://seriousbirder.com/blogs/netapp-deduplication-commands/

QUESTION 94Which row of items should you look up in the IMT (Interoperability Matrix Tool) when designing a NetAppStorage Solution for a customer?

A. Host OS & patches, FC WWPN, Volume Manager, File System versionB. Host OS, iSCSI IQN, Volume Manager, ClusteringC. Host OS & patches, HBA driver, Volume Manager, File System, ClusteringD. Host OS, HBA driver, Host Memory & CPU Speed, File System, Clustering


Explanation/Reference:When designing a NetApp storage solution for a customer, check the row in the IMT for

Host OS & patchesHBA driverVolume ManagerFile SystemClustering


QUESTION 95Which option needs to be set on a LUN to guarantee that it cannot be affected by other LUNs in the volume?

A. Volume GuaranteeB. Volume Space ReservedC. LUN Reservation DisabledD. LUN Reservation Enabled


Explanation/Reference:LUN Reservation:

on (thick provisioned)off (thin provisioned)

*Set a LUN's reservation to on to guarantee it cannot be affected by other LUNs in the volume


QUESTION 96.When does Fractional Reservation reserve space from the volume?

A. Volume CreationB. LUN CreationC. LUN SnapMirrorD. Volume Snapshot

Correct Answer: DSection: (none)

Explanation

Explanation/Reference:Fractional reserve is a volume option that determines how much space Data ONTAP will reserve for Snapshotoverwrite data for LUNs and space-reserved files to be used after all other space in the volume is used.


QUESTION 97Which statement is correct regarding virtual machine alignment on VMware ESX?

A. RDM LUNs do NOT suffer from alignment problems because they are accessed directly by VMs.B. A VMFS LUN with a LUN type of VMware, will always have properly aligned VMs.C. Alignment issues can occur on any protocol including FCP, iSCSI, FCoE, and NFSD. msinfo32 or mbrscan can be run for the ESX service console to check for proper alignment of VMs.


Explanation/Reference:The starting offset of the first file system block on the host can affect LUN I/O alignment.

It is important to selecting the correct LUN type (e.g VMware, Solaris, ...). The LUN type determines: LUNsoffset, and size of prefix and suffix – these differ for different operating systems.To prevent LUN I/O alignment issues with Raw Device Mappings (RDMs) in an ESX environment, use the LUNtype matching the guest operating system.

VMware ESX: virtual machine disk alignment issues can occur on any protocol including FCP, iSCSI, FCoE,and NFS.


QUESTION 98Which of these attributes can affect LUN I/O alignment?

A. The same LUN is present in two igroups with differing ALUA states.B. The starting offset of the first file system block on the host.C. The LUN is a boot LUN.D. The LUN is part of a logical volume.


Explanation/Reference:The starting offset of the first file system block on the host can affect LUN I/O alignment.

It is important to selecting the correct LUN type (e.g VMware, Solaris, ...). The LUN type determines: LUNsoffset, and size of prefix and suffix – these differ for different operating systems.To prevent LUN I/O alignment issues with Raw Device Mappings (RDMs) in an ESX environment, use the LUNtype matching the guest operating system.

VMware ESX: virtual machine disk alignment issues can occur on any protocol including FCP, iSCSI, FCoE,and NFS.


QUESTION 99Which statement is NOT true regarding NetApp Snapshots of VMware ESX datastores?

A. A NetApp Snapshot captures the entire FlexVol including information NOT associated with VMDKs.B. For VMDKs on VMFS datastores, to restore a specific VMDK requires a copy from the NetApp Snapshot to

the datastore.C. NetApp Snapshots can be employed to backup VMFS, NFS, or RDM datastores.D. NetApp Snapshots are instantaneous, so they always produce an application consistent image


Explanation/Reference:In order to capture an application consistent (i.e. quiesced) image, software like SnapManager or the VirtualStorage Console must be employed to coordinate the snapshot procedure with the application. So snapshotsare not ALWAYS application consistent.

QUESTION 100Which statement correctly describes ALUA concepts on NetApp Storage solutions?

A. ALUA is a LUN attribute that is set.B. ALUA deals with Fibre Channel LUNs and is NOT appropriate for iSCSI.C. ALUA can not be used for Windows 2003 and Windows 2008 disk management.D. A LUN can be mapped to an ALUA-enabled igroup and a non-ALUA-enabled igroup.



Disable ALUA on igroups connecting using the NetApp DSM.


QUESTION 101On ESX 4.0 for guest operating systems in a Microsoft cluster configuration, the Path Selection Plug-in (PSP)for a MSCS LUN should be set to:

A. MRU (Most Recently Used)B. RR (Round Robin)C. FixedD. ALUA


Explanation/Reference:On ESX 4.0 with guest operating systems in a Microsoft cluster configuration, the Path Selection Policy (PSP)for an MSCS LUN should be set to: MRU (Most recently used).


QUESTION 102For access to a VMFS datastore created on a NetApp LUN on an ESX 4.0 system for an ALUA configuration,the path selection policy should be set to:

A. MRU (Most Recently Used)B. FixedC. RR (Round Robin)D. ALUA


Explanation/Reference:http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1010713

The RR policy allows I/O to be sent across multiple optimized paths, if they are available, for the supportedALUA configurations.

QUESTION 103A user wants to access a FCP VMFS datastore created on a NetApp LUN using a properly configured ESX 3.5system with a new ESX 4.0 system. Without making changes to the LUN or igroup attributes, what settingshould be used for the SATP (Storage Array Type Plugin)?

A. VM_SATP_ALUAB. VMW_SATP_DEFAULT_AAC. The LUN has to be changed to ALUA before accessing from ESX 4.0D. VM_SATP_DEFAULT


Explanation/Reference:http://www.cosonok.com/2012/02/netapp-ns0-502-study-notes-part-34-san.html

Because the question requests that you not change the igroup attributes, the igroup is implicitly a non-ALUAigroup. So the ESX4.x system must use VMW_SATP_DEFAULT_AA. That is the best answer here.

Note: the best practice contradicts this:

http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1010713https://kb.netapp.com/support/index?page=content&id=3011171

In ESX/ESXi 4.x, MRU is the default policy for all NetApp storage devices in ALUA mode. However, for theESX/ESXi 3.x release, the default policy for the NetApp devices is Fixed.

In a mixed environment where LUNs from a NetApp array are presented to both ESX 3.X and ESX 4.X hosts,the following solutions exist:

Initiators for ESX 3.X should placed into a dedicated igroup: ALUA should not be enabled. The ESX 3.X hosts should continue using the Fixed policy. Initiators for ESX 4.X should placed into a dedicated igroup. ALUA should be enabled. The ESX 4.X hosts should continue using the MRU or RR path selection policy as described above.

QUESTION 104Which three steps are required to make a LUN visible to a NPIV-supported VM? (Choose three.)

A. Map a LUN to the igroup containing the NPIV WWPNs.B. Configure a matching NPIV port on the NetApp controller.C. Set options.npiv.enable to TRUE on the NetApp controller.D. Create a zone containing NetApp target ports and NPIV WWPNs.E. Create an igroup on the NetApp controller containing the NPIV WWPNs.

Correct Answer: ADESection: (none)Explanation

Explanation/Reference:For those who are not familiar with NPIV (N_Port ID Virtualization), let me give you a short summary. Basically,NPIV is the ability for a physical N_Port to carry multiple Virtual Ports IDs using a point-to-point connection.

https://communities.netapp.com/community/netapp-blogs/storage_nuts_n_bolts/blog/2007/12/20/whats-the-npiv-benefit-again

To make a LUN visible to an NPIV-supported VM: Create an igroup on the NetApp controller containing the NPIV WWPNs. Map a LUN to the igroup containing the NPIV WWPNs. Create a zone containing NetApp target ports and NPIV WWPNs.

Only RDM type datastores can be used with NPIV.


QUESTION 105A company has an existing EMC FC SAN.

Which information is important to consider when planning the addition of the Netapp FC San solution?

A. existing hosts with OS level and patches, iSCSI HBAs with firmware and driver, FC switches with firmwareversion and aggregate layout.

B. existing hosts with OS level and patches, iSCSI HBAs with firmware and driver, Ethernet switches withfirmware version and LUN layout.

C. existing hosts with OS level and patches, FC HBAs with firmware and driver, FC switches with firmwareversion and LUN layout.

D. existing hosts with OS level and patches, FC HBAs with firmware and driver, FC switches with firmwareversion and aggregate layout.


Explanation/Reference:When planning the addition of a NetApp FC SAN where the company has an existing FC SAN, consider:

existing hosts with OS level and patchesFC HBAs with firmware and driverFC switches with firmware versionLUN layout.


QUESTION 106Which command do you use to collect information about the firmware version running a Cisco FC switch?

A. version

B. switchshow

C. show switch

D. show version


Explanation/Reference:show version - To display information about the currently loaded software along with hardware and deviceinformation

http://www.cisco.com/en/US/docs/ios/fundamentals/command/reference/cf_s4.html#wp1499591

QUESTION 107When assessing a current storage solution it is critical to document the current existing NetApp storage systemconfiguration.

Which four factors should be considered when documenting this existing configuration? (Choose four.)

A. Ethernet switch firmware versionB. Snapshot configurationC. WAN topologyD. protocols in useE. patch panel layoutF. igroups being usedG. disk ownership settings

Correct Answer: BDFGSection: (none)Explanation

Explanation/Reference:When documenting the existing configuration, factors that should be considered include:

disk ownership settingsigroups being usedprotocols in useSnapshot configuration


QUESTION 108What is the purpose of the iscsi security show command and why is it useful?

A. It displays current iSCSI LUN masking settings, which are critical for assessment purposes.B. It displays currently attached hosts so you know which host systems to inventory as part of your

assessment.C. It displays current CHAP settings, which are important to record when assessing an existing installation.D. It displays current iSCSI VLAN settings, which will be important when configuring the new storage system.


Explanation/Reference:iscsi security show - Display the default authentication and all the initiator specific authenticationinformation.

http://wafl.co.uk/iscsi/#sthash.qvwqWcAb.dpuf

QUESTION 109Which command do you use on the NetApp storage array to see if iSCSI digests are enabled?

A. iscsi digest show

B. iscsi session show –v

C. iscsi stats

D. iscsi session digests


Explanation/Reference:iscsi session show [-v | -t | -p | -c] [ <session_tsih> ...]

Show status of specified session, or for all sessions if no sessions are specified.

If the -t option is specified, the output contains underlying TCP connection information.If the -p option is specified, the output contains iSCSI session parameter information.

If the -c option is specified, the output contains information about the iSCSI commands which are in progresson the session.

If the -v option is specified, the output is verbose, and contains all information, including that shown with the -t, -p, and -c options.

Status information displayed includes:Initiator name, ISID – The iSCSI nodename and iSCSI Initiator Session ID, which combine to identify theinitiator using this session.

TCP connections – The local and remote IP addresses, TCP ports, and filer network interface used for eachunderlying TCP connection. for each connection.

Session Parameters – iSCSI session parameters negotiated via the iSCSI login key exchanges. For specificdefinitions of these parameters, please see the iSCSI protocol specification.

iscsi stats [-z]

Display the current iSCSI statistics. Statistics displayed include the different iSCSI PDU types transmitted andreceived, SCSI CDB’s processed, and various iSCSI errors which may occur.

http://wafl.co.uk/iscsi/#sthash.qvwqWcAb.dpuf

QUESTION 110Which documentation includes a detailed diagram showing placement in the cabinet of storage controllers, diskstorage shelves, and switch placement?

A. FC Switch configuration documentationB. storage controller configuration documentationC. data layout diagramD. cabinet diagram



Physical location of the rack in the datacenter. Rack identifying information. Location in the rack of NetApp storage controllers and storage shelves. Switch placement. Storage shelf connectivity.


QUESTION 111A company asks you to design a highly available storage network for their new data center. They use Brocadeswitches and Qlogic HBA’s for their solution.

What is the minimum number of FC HBA ports required for this configuration?

A. 1B. 2C. 4D. 8


Explanation/Reference:In order for the configuration to support redundancy for high availability, two ports are required for initiators andtwo for targets - a minimum of four.

QUESTION 112When creating a connectivity diagram for FCP, which three are important to document? (Choose three.)

A. port numbers and initiator/target configuration for the NetApp storage systemB. Fibre Channel switch port connection details with host and storage WWNs

C Host OS version and Patches

C. host WWNs and port connection detailsD. Data ONTAP version


Explanation/Reference:Important for connectivity diagram for FCP:

Port numbers and initiator/target configuration for the NetApp storage system. FC switch port connection details with host and storage WWNs. Host WWNs and port connection details.


QUESTION 113When creating a connectivity diagram for iSCSI, which three are important to document? (Choose three.)

A. host login informationB. Ethernet switch port connection details and IP addressesC. host and storage device IQN’sD. Ethernet switch firmware versionE. Netapp storage system port configuration (initiator/target)

Correct Answer: BCESection: (none)Explanation

Explanation/Reference:Important for connectivity diagram for iSCSI:

Ethernet switch port connection details and IP addresses. Host and storage device IQNs. NetApp storage system port configuration (initiator/target).


QUESTION 114The costumer requires a 100-GB LUN and will fill the LUN on the first day. On average, their data changes 10GB (10%) each day. The customer plans to take a Snapshot at midnight each night. The storage system is setup with all default settings.

What is the minimum usable space required in the volume to hold the LUN and seven Snapshots, andguarantee that a write would never fail due to lack of space?

A. 150 GBB. 170 GBC. 270 GBD. 370 GB


Explanation/Reference:100GB * (10% per day for seven days) = 170GB

http://www.wolframalpha.com/input/?i=100+gb+*+%2810%25+a+day+for+seven+days%29

QUESTION 115A company is deploying several applications over Fibre Channel. The volume on the storage system hasfractional reserve set to zero and SnapShot reserve set to zero.

The volume will host three 100-GB LUNs. The customer will not be taking Snapshot copies. All other settingsare using default values.

What is the minimum volume size required?

A. 100 GBB. 300 GBC. 600 GBD. 660 GB


Explanation/Reference:With no reserves set and no snapshots being taken, using default options, the LUNs will each consume 100GBof the volume.


lun create -s size -t ostype [ -o noreserve ] [ -e space_alloc ] lun_path

By default, the LUN is space-reserved. To manage space usage manually, -o noreserve can be specified.Using this option will create a LUN without any space being reserved. Provisioning threshold events can beenabled by specifying -e space_alloc option. This option has to be used in conjunction with -onoreserve.

QUESTION 116A company is deploying several applications over Fibre Channel. A single NetApp volume has the volumeguarantee option set to Volume.

This volume will host three 100-GB LUNs that will be preloaded after the LUNs are created.

The volume has fractional reserve set to 50%

The customer wants to take two snapshot copies per week and keep them online for two weeks.

Additionally, the rate of change between Snapshot copies is 10%.

What is the minimum volume size required?

A. 720 GBB. 330 GBC. 360 GBD. 570 GB

Correct Answer: DSection: (none)

Explanation

Explanation/Reference:"preloaded" meaning filled with data.

300GB plus fractional reserve set to 50% (150GB) = 450GB

4 snap shot copies at 10% rate of change = 120GB

QUESTION 117Which license from the list below allows SnapDrive to be used with a NetApp appliance?

A. NFS licenseB. FCP licenseC. CIFS licenseD. Cluster license


Explanation/Reference:FCP or iSCSI license is required for SnapDrive to be used with a NetApp appliance.


QUESTION 118Before installing Snap Drive, which task must you complete to have a configuration that meets best practices?

A. change the administrator path on the serverB. establish an SnapDrive service accountC. enable an HTTP licenseD. enable a CIFS license on the NetApp applicance


Explanation/Reference:Enter an account that can be used as a service account for the SnapDrive services. This account must be amember of the Built-In Administrators group.

http://www.sysadmintutorials.com/tutorials/netapp/installing-netapp-snapdrive-for-windows/

QUESTION 119For Cisco and Brocade FC switches what are two benefits of soft zoning (device WWPN zoning) over hardzoning (domain ID plus port)? (Choose two.)

A. It provides hardware-assisted security.B. A device can be connected to any port in the fabric without changing zoning.C. Any device can be connected to a port in the zone without changing zoning.

D. It is fully interoperable between switch vendors.

Correct Answer: ADSection: (none)Explanation

Explanation/Reference:Two benefits of soft zoning (device WWPN zoning) over hard zoning (domain ID plus port) for Cisco andBrocade FC switches:

A device can be connected to any port in the fabric without changing zoning.It is fully interoperable between switch vendors.


QUESTION 120When hard zoning (domain ID plus port) is in use and a host HBA is replaced, which zoning change needs tobe made?

A. No changes are necessary HBA can be connected to any port on the switch.B. No changes need to be made provided the new HBA is connected to the same port.C. You must add the WWPN of the new HBA to the zone and remove the WWPN of the old HBA.D. You must add the WWPN of the new HBA to the zone; the WWPN of the old HBA will be automatically

dropped.


Explanation/Reference:When hard zoning (domain ID plus port) is in use and a host HBA is replaced, no changes need to be madeprovided the new HBA is connected to the same port.


QUESTION 121Which Ethernet topologies for iSCSI does NetApp highly recommend?

A. WAN without VLANs implementedB. LAN without VLANs implementedC. LAN with VLANs implementedD. Metro-ring SONET network


Explanation/Reference:NetApp recommended Ethernet topology for iSCSI: LAN with VLANs implemented.


QUESTION 122Following NetApp best practices, what is the rule for FC Target connections to the storage controller?

A. Target ports should always be on expansion cards and not not the onboard ports.B. Target ports should always be on onboard ports and not on expansion cards.C. Target ports should be either ALL on expansion cards or ALL on the onboard ports but never mixed.D. Target ports should always be mixed across cards and onboard ports.


Explanation/Reference:NetApp best practice: FC Target ports should be either ALL on expansion cards or ALL on the onboard portsbut never mixed.


QUESTION 123Which command do you use to check if the network interfaces on the NetApp storage system are enabled foriSCSI traffic?

A. iscsi stats

B. iscsi status

C. iscsi interface show

D. iscsi tpgroup show


Explanation/Reference:iscsi interface show [-a | <interface> ...]

Show the enable/disable state of the specified interfaces, or of all interfaces if -a is specified. If no argumentsare specified, the state of all interfaces is displayed.

http://backdrift.org/man/netapp/man1/na_iscsi.1.html

QUESTION 124A company has a NetApp 4-Gb solution, and they only want to upgrade to 8-Gb switches.

What should the company do?

A. They would not be able to do this because 8 Gb is not supported.B. They need to add 8-Gb HBAs into each controller and 8-Gb HBAs to all systems.C. They need to add 8Gb HBAs into each controller.D. They need to replace the existing 4-Gb switches.


Explanation/Reference:FC switch ports that are 8Gb capable can also negotiate 1,2 and 4Gb.

QUESTION 125To achieve NIC-based iSCSI multipath I/O, what is the minimum number of required VMkernels?

A. 2B. 3C. 4D. 6


Explanation/Reference:Each vmkernel to be bound to the software iSCSI initiator must be specially configured with a single vmnicuplink. You need two such vmkernels to configure for multipathing.

QUESTION 126What type of datastore can be used with NPIV?

A. VMFSB. RDMC. NASD. FC


Explanation/Reference:Raw Device Mapping (RDMs) mapped to the VM for NPIV

http://blogs.vmware.com/vsphere/2011/11/npiv-n-port-id-virtualization.html

QUESTION 127Which two tools can be used to verify the WWNN and WWPNs from the commandline interface? (Choosetwo.)

A. esxcfg-show

B. sanlun fcp show adapter

C. esxcfg-info

D. sanlun fcp info

Correct Answer: BCSection: (none)Explanation

Explanation/Reference:sanlun fcp show adapter : UNIX CLI NetApp host utility command to verify WWNN and WWPNs

esxcfg-info : VMware ESX CLI command to verify WWNN and WWPNs


QUESTION 128When using NetApp DSM 3.3.1, it is recommended to:

A. Disable ALUA on igroups connection using the NetApp DSM

B. Install NetApp DSM 3.3.1 in Data ONTAP to aid in path selection optimizationC. To enable NetApp DSM 3.3.1 to by-pass igroup masking and talk directly to LUNsD. NOT use NetApp DSM 3.3.1



Disable ALUA on igroups connecting using the NetApp DSM.


QUESTION 129Which two Storage Array Type Plug-ins does NetApp support? (Choose two.)

A. VMW_SATP_ALUAB. VM_SATP_FIXEDC. VM_SATP RRD. VM_SATP_MRUE. VMW_SATP_DEFAULT_AA

Correct Answer: AESection: (none)Explanation

Explanation/Reference:NetApp supports the following Storage Array Type Plug-ins (SATP):

VMW_SATP_ALUA (for FC)VMW_SATP_DEFAULT_AA (for iSCSI)


QUESTION 130After creating a VMFS datastore, you can use it to create a primary and/or secondary disk for VMs.

A. TrueB. False


Explanation/Reference:VMFS is a high-performance cluster file system optimized for virtual machines. While conventional file systemsallow only one server to have read-write access to the same file system at a given time, VMFS leveragesshared storage to allow multiple vSphere hosts to read and write to the same storage concurrently.

http://www.vmware.com/products/vsphere/features-vmfs#sthash.0xkAfcuc.dpuf

QUESTION 131Which storage system command should be used to group initiators to allow them to be mapped to LUNs?

A. igroup group

B. igroup allow

C. igroup map

D. igroup create


Explanation/Reference:igroup create { -f | -i } -t ostype [ -a portset ] initiator_group [ node ... ]

Creates a new initiator group.

If the -f option is given, an FCP initiator group is created.

If the -i option is given, an iSCSI initiator group is created.

The -t option can be used to specify the ostype of the initiators within the group. The type applies to allinitiators within the group and governs the finer details of SCSI protocol interaction with these initiators. Validarguments are solaris, windows, hpux, aix, linux, netware, vmware, openvms, xen and hyper_v.

The -a option can be used to specify a portset to bind to the newly created initiator group. The portset must notbe empty in order for an initiator group to bind to it.

If the initiator_group includes spaces, it must be enclosed in double quotation marks. The maximum length ofthe initiator_group is 96 bytes.

FCP nodes are specified as world wide port names (WWPN), written as 16 hexadecimal characters withoptional (:) characters. Alternatively, you may also use aliases set for wwpns using the fcp wwpnaliascommand. iSCSI nodes are written in the dotted-domain fashion.

http://backdrift.org/man/netapp/man1/na_igroup.1.html

QUESTION 132Which two technologies are required for Fibre Channel over Ethernet (FCoE)?(Choose two.)

A. Lossless EthernetB. iSNSC. DCBD. FC-IPSE. DHCPF. Domain Name System (DNS)


Explanation/Reference:Lossless Ethernet is enabled through two technologies, PFC/802.1Qbb and DCB:

Priority Flow Control (PFC) (802.1Qbb) enables PAUSE-like (802.3x) functionality on a per-Ethernet prioritybasis. PFC allows for lossless Ethernet connections to be created for a given priority within an otherwise lossyEthernet network.

A Data Center Bridging (DCB) Ethernet switch is an Ethernet switch implementation that has certain

characteristics, the most important being that they do not drop frames under congestion, or are, in other words,considered to be lossless.

http://www.emc.com/collateral/hardware/technical-documentation/h6290-fibre-channel-over-ethernet-techbook.pdf

QUESTION 133By default, with Ethernet priority channel does the NetApp Unified Target Adapter use for FCoE?

A. 1B. 4C. 2D. 5E. 3


Explanation/Reference:By default NetApp UTA uses Ethernet priority channel 3 for FCoE


QUESTION 134By default, what is the allocation that the NetApp Unified Target Adapter uses between FCoE and otherEthernet traffic using Cisco’s Nexus switch?

A. 100% FCoE, 0% OtherB. 50% FCoE, 50%OtherC. 75% FCoE, 25% OtherD. 25% FCoE, 75% Other


Explanation/Reference:Default is 50% for FCoE traffic and 50% for other traffic (recommend change to 80% for FCoE traffic)


QUESTION 135When implementing MS Multipath I/O (MPIO), what is also required in addition to the MPIO drivers?

A. Multiple Connection Session (MCS)B. Disk Standard Model (DSM)C. Multipath Configuration I/O (MPxIO)D. Device-Specific Module (DSM)


Explanation/Reference:Device Specific Module (DSM) is the best answer of the choices offered.

Note: the DSM is not "required"; the Windows MPIO driver will work.

http://www.ntapgeek.com/2008/01/netapp-mpio-dsm-vs-microsofts-generic.html

QUESTION 136Which protocol does the FC frame encapsulate within FCoE?

A. EhternetB. IPC. FCoE FrameD. SCSI-3


Explanation/Reference:FC, iSCSI, and FCoE all encapsulate SCSI-3.

http://www.imexresearch.com/newsletters/fcoe.html

QUESTION 137To implement Lossless Ethernet, switch vendors execute which frame command to control flow?

A. STOPB. LOSSFLOWC. PAUSED. ENDE. BRANCH


Explanation/Reference:Lossless Ethernet (IEEE 802.1Qbb): Ability to have multiple traffic types share a common Ethernet link withoutinterfering with each other (uses PAUSE frame command to control flow).


QUESTION 138Which of the following protocols are not supported in Data ONTAP 8.0.1 simultaneously with FCoE using theUnified Target Adapter?

A. CIFSB. FTPC. NFS

D. HTTPE. None of the above


Explanation/Reference:DOT 8.0.1 first allowed both FCoE and traditional Ethernet protocols using the same Unified Target Adapter(UTA).


QUESTION 139What can the storage system’s fcp show adapter command be used to determine?

A. Whether target Fibre Channel (FC) adapters are onlineB. Whether iSCSI Host Bus Adapters (HBAs) are onlineC. Whether initiator FC adapters are onlineD. Whether interlink FC adapters are online


Explanation/Reference:fcp show adapter [ -v ] [ adapter ]

If no adapter name is given, information about all adapters are shown.

This command displays information such as nodename/portname and link state about the adapter.

If the -v flag is given, this command displays additional information about the the adapters.

http://backdrift.org/man/netapp/man1/na_fcp.1.html

QUESTION 140On Cisco Nexus 5000 series switch, what must occur before the FCoE initiators and FCoE targets can discovereach other?

A. Port logoffB. Fabric logoffC. Nameserver eraseD. None of the aboveE. Proper zoning


Explanation/Reference:In storage networking, Fibre Channel zoning is the partitioning of a Fibre Channel fabric into smaller subsets torestrict interference, add security, and to simplify management.

http://en.wikipedia.org/wiki/Fibre_Channel_zoning

QUESTION 141Which two can be added to a Virtual Storage Area Network (VSAN) (Choose two.)

A. Ethernet interfaceB. Serial interfaceC. FC interfaceD. Management interfaceE. Virtual Fibre Channel Interface

Correct Answer: CESection: (none)Explanation

Explanation/Reference:Remember: only FC and virtual FC interfaces can be added to VSANs.

When configuring virtual interfaces, note the following guidelines and limitations:

• Each virtual Fibre Channel interface must be bound to an FCoE-enabled Ethernet interface. FCoE issupported on 10-Gigabit Ethernet interfaces.

• Each virtual Fibre Channel interface is associated with only one VSAN.

• Any VSAN with associated virtual Fibre Channel interfaces must be mapped to a dedicated FCOE-enabledVLAN.

• FCoE is not supported on private VLANs.

http://www.cisco.com/en/US/docs/switches/datacenter/nexus5000/sw/configuration/guide/cli_rel_4_0_1a/VirtIntf.html

You can achieve higher security and greater stability in Fibre Channel fabrics by using virtual storage areanetworks (VSANs). VSANs provide isolation among devices that are physically connected to the same fabric.

Interfaces are members of a VSAN. Interfaces enable communication between switches in a VSAN. Interfacesthat are members of the same VSAN can communicate with each other; interfaces that are members ofdifferent VSANs cannot communicate with each other.

http://www.cisco.com/en/US/docs/storage/san_switches/mds9000/sw/san-os/quick/guide/qcg_vin.html

QUESTION 142What is the default VSAN for FC ports on the Cisco Nexus switch?

A. 1B. 2C. 3D. 10E. No default, must be set


Explanation/Reference:The factory settings for switches in the Cisco MDS 9000 Family have only the default VSAN 1 enabled. Werecommend that you do not use VSAN 1 as your production environment VSAN. If no VSANs are configured, alldevices in the fabric are considered part of the default VSAN. By default, all ports are assigned to the default

VSAN.

http://www.cisco.com/en/US/products/ps5989/products_configuration_guide_chapter09186a0080662ce3.html#wp1094457

QUESTION 143In Data ONTAP 8.0.1 and later, which command shows the FC topology that your system is connected to?

A. fc topology show

B. ifconfig topology show

C. fcp topology show

D. ifstat topology show

E. dcb topology show


Explanation/Reference:fcp topology show [ adapter ]

Displays fabric topology information. If no adapter is specified, topology information for all adapters are shown.The topology information lists the switches and ports in the fabric. Ports that are visible to the Fibre Channeltarget adapter from a fabric zoning perspective are marked with an asterisk.

https://library.netapp.com/ecmdocs/ECMP1120818/html/test/man1/na_fcp.1.htm

QUESTION 144What is the only supported FCoE topology?

A. direct-attachedB. Core-edgeC. networkD. cascadingE. Radio-attachedF. Loop


Explanation/Reference:For FCoE, fabric or network topology is the only supported attachment configuration (direct connection notsupported for FCoE). Since FCoE is a network protocol, network is the only correct answer here.

http://www.cosonok.com/2012/03/netapp-cisco-lab-56-configuring-fcoe.html

QUESTION 145What commands are used when configuring network adapters for iSCSI initiators on a RHEL 5.7 system?(Choose three)

A. iscsiadm

B. lun show -v

C. mtab -l

D. lspci

E. modprobe

F. mdpathadm

G. rm -rf /dev

Correct Answer: ADESection: (none)Explanation

Explanation/Reference:http://www.open-iscsi.org/index.html#docshttp://linux.die.net/man/8/iscsiadm

The iscsiadm utility is a command-line tool allowing discovery and login to iSCSI targets, as well as access andmanagement of the open-iscsi database.

http://linux.die.net/man/8/lspci

lspci is a utility for displaying information about PCI buses in the system and devices connected to them.

http://linux.die.net/man/8/modprobe

modprobe intelligently adds or removes a module from the Linux kernel. In Linux, a kernel module isanalogous to a driver.


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