strsw ilt perfcdot exerciseguide

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NETAPP UNIVERSITY

Performance Analysis on Clustered Data ONTAP

Exercise Guide

Course ID: STRSW-ILT-PERFCDOTCatalog Number: STRSW-ILT-PERFCDOT-EGContent Version: 1.0


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E-2 Performance Analysis on Clustered Data ONTAP: Welcome

2013 NetApp, Inc. This material is intended only for training. Reproduction is not authorized.

ATTENTION

The information contained in this course is intended only for training. This course contains information and activities that,while beneficial for the purposes of training in a closed, nonproduction environment, can result in downtime or othersevere consequences in a production environment. This course material is not a technical reference and should not,under any circumstances, be used in production environments. To obtain reference materials, refer to the NetApp productdocumentation that is located at http://now.netapp.com/.

COPYRIGHT

2013 NetApp, Inc. All rights reserved. Printed in the U.S.A. Specifications subject to change without notice.

No part of this document covered by copyright may be reproduced in any form or by any meansgraphic, electronic, ormechanical, including photocopying, recording, taping, or storage in an electronic retrieval systemwithout prior writtenpermission of NetApp, Inc.

U.S. GOVERNMENT RIGHTS

Commercial Computer Software. Government users are subject to the NetApp, Inc. standard license agreement andapplicable provisions of the FAR and its supplements.

TRADEMARK INFORMATION

NetApp, the NetApp logo, Go further, faster, AdminNODE, Akorri, ApplianceWatch, ASUP, AutoSupport, BalancePoint,BalancePoint Predictor, Bycast, Campaign Express, ChronoSpan, ComplianceClock, ControlNODE, Cryptainer, DataONTAP, DataFabric, DataFort, Decru, Decru DataFort, DenseStak, Engenio, E-Stack, FAServer, FastStak, FilerView,

FlexCache, FlexClone, FlexPod, FlexScale, FlexShare, FlexVol, FPolicy, GatewayNODE, gFiler, Imagine VirtuallyAnything, Infinivol, Lifetime Key Management, LockVault, Manage ONTAP, MetroCluster, MultiStore, NearStore, NetAppSelect, NetCache, NetCache, NOW (NetApp on the Web), OnCommand, ONTAPI, PerformanceStak, RAID DP,SANscreen, SANshare, SANtricity, SecureAdmin, SecureShare, Securitis, Service Builder, Simplicity, Simulate ONTAP,SnapCopy, SnapDirector, SnapDrive, SnapLock, SnapManager, SnapMirror, SnapMover, SnapProtect, SnapRestore,Snapshot, SnapValidator, SnapVault, StorageGRID, StorageNODE, StoreVault, SyncMirror, Tech OnTap, VelocityStak,vFiler, VFM, Virtual File Manager, WAFL, and XBB are trademarks or registered trademarks of NetApp, Inc. in the UnitedStates and/or other countries.

All other brands or products are either trademarks or registered trademarks of their respective holders and should betreated as such.


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E-3 Performance Analysis on Clustered Data ONTAP: Welcome


TABLE OF CONTENTS

WELCOME..................................................................................................................................................... E-1

MODULE 1: HOW A NETAPP STORAGE SYSTEM WORKS................................................................... E1-1

MODULE 2: PERFORMANCE OVERVIEW................................................................................................ E2-1

MODULE 3: CLUSTERED STORAGE SYSTEM WORKLOADS AND BOTTLENECKS ......................... E3-1

MODULE 4: CLUSTER PERFORMANCE MONITORING AND ANALYSIS ............................................. E4-1

MODULE 5: ONCOMMAND MANAGEMENT TOOLS ............................................................................... E5-1

MODULE 6: STORAGE QOS...................................................................................................................... E6-1

MODULE 7: SUMMARY .............................................................................................................................. E7-1

APPENDIX A: ANSWERS ............................................................................................................................. A-1


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E1-1 Performance Analysis on Clustered Data ONTAP: How a NetApp Storage System Works


MODULE 1: HOW A NETAPP STORAGE SYSTEM WORKS

There is no exercise associated with Module 1.


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E2-1 Performance Analysis on Clustered Data ONTAP: Performance Overview


MODULE 2: PERFORMANCE OVERVIEW

EXERCISE

In this exercise, you identify your exercise equipment, log in to the exercise environment, and verify theequipment.

OBJECTIVES

By the end of this exercise, you should be able to:

Identify the exercise environment Log in to the exercise environment Add a cluster to the OnCommand System Manager Configure the SNMP public community name Identify clustered Data ONTAP components Set the clustered Data ONTAP command-line system timeout value (optional)

TASK 1: IDENTIFY THE EXERCISE ENVIRONMENT

In this task, you log in to your assigned exercise environment. You perform all subsequent exercises from this

assigned machine.STEP ACTION

1. With the assistance of your instructor, identify your main Windows server. This machine mightbe a virtual machine.

IP address: _______________________________________________

Domain: _________________________________________________

Domain administrator password: Netapp123

2. With the assistance of your instructor, identify your clustered NetApp Data ONTAP operatingsystem nodes.

Node 1 Management LIF IP address: 192.168.0.91

Node 2 Management LIF IP address: 192.168.0.92

Cluster Management LIF IP address: 192.168.0.101

Cluster Administrator (admin) password: Netapp123

3. With the assistance of your instructor, identify your Linux machine. This machine might be avirtual machine.

IP address: 192.168.0.10

Root password: Netapp123

Windows Server

Clustered Data ONTAP

Linux Server


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STEP ACTION

4. With the assistance of your instructor, identify your secondary Windows server. This machinemight be a virtual machine.

IP address: 192.168.0.6

Root password: Netapp123

TASK 2: LOG IN TO THE EXERCISE ENVIRONMENT

In this task, you use Remote Desktop Connection to log in to your assigned exercise environment. Youperform all subsequent tasks from this assigned machine.

STEP ACTION

1. On your local Windows machine desktop, click the Remote Desktop Connectionlink to log into the remote Windows machine through the Remote Desktop Connection tool.

If this link is not available, ask your instructor where to find the tool.

2. Enter the IP address of your remote Windows server, and then click Connect.

3. Verify that the desktop of the remote machine is displayed.

4. If you are asked for authentication, enter the user name and password that your instructor gaveyou.

Windows Server


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TASK 3: ADD A CLUSTER TO ONCOMMAND SYSTEM MANAGER

In this task, you add your cluster management port to the local hosts file, launch System Manager, and add

your assigned cluster.

NOTE: For more information about configuring a storage system with System Manager, see the ClusteredData ONTAP Administrationcourse.

STEP ACTION

1. On the Windows Server desktop, open Windows Explorer.


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STEP ACTION

2. Navigate to !"#$%&'()*#+,*-./01#23%4.3*#.-5.

3. Double-click hosts.


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STEP ACTION

4. Verify that the operation dialog box appears.

5. Select Notepadto open the hosts file in this tool.

6. Append the following information to the end of the file:78197:;9


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STEP ACTION

11. Verify that System Manager starts.

12. In the upper left, click the Loginbutton, and then enter the following:

User name: ?'/%&

Password:@.-?AA710

Save my credentials: selected

13. Click Sign in.


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STEP ACTION

14. In the left pane of System Manager, expand cluster1.

NOTE: There are two nodes in the cluster.


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TASK 4: CONFIGURE SNMP PUBLIC COMMUNITY NAME

In this task, you configure the SNMP public community name so that System Manager and OnCommand

Balance can properly discover your cluster.

NOTE: In some highly secure environments, this might not be appropriate.

STEP ACTION

1. Navigate to Cluster> cluster1> Configuration> SystemTools> SNMP.

2. Click Edit.


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STEP ACTION

3. Click Add.


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STEP ACTION

4. Enter the community name:A>B=%5

5. Click OK.


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STEP ACTION

6. Click OKto close the Edit SNMP Settings dialog box.


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STEP ACTION

7. Verify that publicis now in the community names area.


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TASK 5: IDENTIFY CLUSTERED DATA ONTAP COMPONENTS

In this task, you use either System Manager or the clustered Data ONTAP CLI to identify key clustered Data

ONTAP components and revert any LIFs that are not on their home ports.

STEP ACTION

1. Analyze and identify the following list of clustered Data ONTAP components:

Aggregates ______________________________________________________________

Storage virtual machines ___________________________________________________

Volumes ________________________________________________________________

LUNs __________________________________________________________________

Licenses (which features are installed?) ________________________________________

CIFS Shares ______________________________________________________________

LIFs (are all LIFs home?)____________________________________________________

2.Revert any LIFs that are not on their home ports.

TASK 6: SET THE CLUSTERED DATA ONTAP COMMAND LINE SYSTEM TIMEOUT VALUE(OPTIONAL)

In this optional task, you set the clustered Data ONTAP command-line system timeout value.

STEP ACTION

1. Open a PuTTY session with cluster1.

2. Check the current system timeout value.

*,*-./ -%/.(>- *C()

3. Set the system timeout to 0 (no timeout).

*,*-./ -%/.(>- /('%D, E-%/.(>- ???@@>????

8. What command syntax would you use to display all of the user_read_latency counters that aregreater than 10000us for all disks in the cluster, limiting the display to only the counter andvalue fields?

9. Using the advanced privilege level, start statistics data collection on the statistics objectaggregate.

!"#"$!"$%! !"#4" 0(*+,%" #))4,)#", 0!#39',0$5 !#39',:#))4

10. Display nonzero user_reads and user_writes counters for each aggregate.

!"#"$!"$%! !-(. 0(*+,%" #))4,)#", 0$/!"#/%, < 0%(2/",42!,4:4,#5!A2!,4:.4$",! 0!#39',0$5 !#39',:#))4 01#'2, B?

11. Using the advanced privilege level, start statistics data collection on the statistics object

volume.

!"#"$!"$%! !"#4" 0(*+,%" 1('23, 0!#39',0$5 !#39',:1('23,

12. Display all of the volume activity by displaying all of the data counters for each volume.

!"#"$!"$%! !-(. 0(*+,%" 1('23, 0$/!"#/%, < 0%(2/",4


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E3-4 Performance Analysis on Clustered Data ONTAP: Clustered Storage System Workloads and Bottlenecks

2013 NetApp, Inc. This material is intended only for t raining. Reproduction is not authorized.

STEP ACTION

16. Using the advanced privilege level, start statistics data collection on the statistics object

workload.

!"#"$!"$%! !"#4" 0(*+,%" .(46'(#5 0!#39',0$5 !#39',:.(46'(#5

17. Display all of the latency counters for each workload and limit the display to the counter and

value fields.

!"#"$!"$%! !-(. 0(*+,%" .(46'(#5 0$/!"#/%, < 0%(2/",4


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STEP ACTION

6. On the Windows Server desktop, double-click the Command Prompt.

7. Drag the SIO.exeshortcut to the Command Promptwindow.

8. Press the Spacebar, type the following list of parameters, and then press Enter:

? ? 8;6 8??3 8? > DFG8??37$',

9. After the command ends and the command prompt returns, go to the PuTTY session and turn offdata collection.

!"#"$!"$%! !"(9 0!#39',0$5 !#39',:%$7!>


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STEP ACTION

10. Start statistics data collection again on the same objects, but this time change the sample name to

!#39',:%$7!;.

!"#"$!"$%! !"#4" 0(*+,%" %$7!A1('23,A4,#5#-,#5 0!#39',0$5 !#39',:%$7!;

11. In the Command Prompt window, press the Up arrow, change the SIO parameters to thefollowing, and then press Enter:

>?? ? 8;6 8??3 8? H DFG8??37$',

12. After the command ends and the command prompt returns, go to the PuTTY session and turn offdata collection.

!"#"$!"$%! !"(9 0!#39',0$5 !#39',:%$7!;

13. Run through the same sequence (Steps 1012) one more time for sample_cifs3, using the

following SIO parameters:

!#39',:%$7!8

I? >?? H6 8??3 8? 8; DFG8??37$',

NOTE: After the command ends and the command prompt returns, remember to go to the

PuTTY session and turn off data collection.

14. After all three samples are collected; analyze the counters to determine the workloadcharacteristics of each sample.

The following commands will help to define the CIFS workload in each sample (sample_cifs1

through sample_cifs3).

NOTE:Change the X in sample_cifsXto the sample being analyzed (1 through 3).

!"#"$!"$%! !-(. 0(*+,%" %$7! 0$/!"#/%, < 0%(2/",4 %$7!:4,#5:(9!0!#39',0$5 !#39',:%$7!J!"#"$!"$%! !-(. 0(*+,%" %$7! 0$/!"#/%, < 0%(2/",4 %$7!:.4$",:(9!0!#39',0$5 !#39',:%$7!J

!"#"$!"$%! !-(. 0(*+,%" 1('23, 0$/!"#/%, < 0%(2/",4 %$7!:4,#5:'#",/%=0!#39',0$5 !#39',:%$7!J!"#"$!"$%! !-(. 0(*+,%" 1('23, 0$/!"#/%, < 0%(2/",4 %$7!:.4$",:'#",/%=0!#39',0$5 !#39',:%$7!J

!"#"$!"$%! !-(. 0(*+,%" %$7! 0$/!"#/%, < 0%(2/",4 %$7!:4,#5:!$D,:-$!"(0!#39',0$5 !#39',:%$7!J

!"#"$!"$%! !-(. 0(*+,%" %$7! 0$/!"#/%, < 0%(2/",4 %$7!:.4$",:!$D,:-$!"(0!#39',0$5 !#39',:%$7!J

The following statistics commands are specific to readworkloads. If you have alreadydetermined that the workload is a writeworkload, you can skip these commands.

!"#"$!"$%! !-(. 0(*+,%" 4,#5#-,#5 0$/!"#/%, < 0%(2/",4 4#/5:4,#5:4,E!0!#39',0$5 !#39',:%$7!J

!"#"$!"$%! !-(. 0(*+,%" 4,#5#-,#5 0$/!"#/%, < 0%(2/",4 !,E:4,#5:4,E!0!#39',0$5 !#39',:%$7!J


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STEP ACTION

15. Record your observations for sample_cifs1 below:

CHARACTERISTIC OBSERVED VALUE

Read Write

Throughput

Latency

Operation Size

Concurrency

Randomness

16. What did the command-line output look like for throughput of sample_cifs1?

17. What did the command-line output look like for latency of sample_cifs1?

18. What did the command-line output look like for read operation size of sample_cifs1?

19. What did the command-line output look like for write operation size of sample_cifs1?

20. What did the calculation (throughput * latency) look like for concurrency of sample_cifs1?

21. What did the command-line output look like for randomness (*#-./*0#./*01!) of

sample_cifs1?

22. What did the command-line output look like for randomness (!01/*0#./*01!) of

sample_cifs1?

23. What workload did you conclude from your data collection of sample_cifs1?


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STEP ACTION



Read Write

Throughput

Latency

Operation Size

Concurrency

Randomness







sample_cifs2?


sample_cifs2?



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STEP ACTION



Read Write

Throughput

Latency

Operation Size

Concurrency

Randomness







sample_cifs3?


sample_cifs3?



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STEP ACTION

42. The previous examples used CIFS as the basis for the workloads. What statistics objects andcounters would be needed for NFSv3?

END OF EXERCISE


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E4-1 Performance Analysis on Clustered Data ONTAP: Cluster Performance Monitoring and Analysis


MODULE 4: CLUSTER PERFORMANCE MONITORING AND ANALYSIS

EXERCISE

In this exercise, you identify storage system performance baselines, analyze and isolate bottlenecks, and workwith the Perfstat utility.

OBJECTIVES


Perform initial health checks on a cluster Perform baseline performance monitoring from the cluster shell Perform performance monitoring and analysis from the cluster shell Unlock the diag userid Use the Performance and Statistics Collector (Perfstat)

TASK 1: PERFORM INITIAL HEALTH CHECKS ON THE CLUSTER

In this task, you query the cluster to assess the initial health status.

STEP ACTION


2. Check to see if all of the nodes are healthy.

!"#$%&' $)*+

3. Check to see if the replication rings have the same (or consistent) masters.

NOTE:Remember to set advanced privilege before you execute this command.

!"#$%&' ',-. $)*+

4. Using the advanced privilege level, check to see if the cluster connectivity is healthy.

!"#$%&' /,-.0!"#$%&' 0-*1& "*!2"

5. Check to see if the storage virtual machines (SVMs) are healthy.

12$)3*2'1 )&2"%) 4$&'4&' $)*+

6. If any of the SVMs return a nonzero status, add the 2""parameter for additional information.

12$)3*2'1 )&2"%) 4$&'4&' $)*+02""

7. Check to see if any volumes are not online.

4*"#5& $)*+ 0$%2%& 6*-",-&

8. Check to see if any aggregates are not online.

$%*'2.& 2..'&.2%& $)*+ 0$%2%& 6*-",-&


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STEP ACTION

9. Check to see if any disks are in a broken state.

$%*'2.& 1,$7 $)*+ 0$%2%& 3'*7&-

10. Normally at this point in the health check, you would check the performance status by using thecommands that follow; however, because these commands will also be run as part of the nexttask, they do nothave to be run at this time.

To check the performance status (which is optional at this time), enter these commands:

a. Check the current level of activity on each node of the cluster.

$%2%,$%,!$ $)*+0/&',*1,! 0-*1& !"#$%&'8098 0,-$%2-!& -*1& 0,%&'2%,*-$ :

$%2%,$%,!$ $)*+0/&',*1,! 0-*1& !"#$%&'809; 0,-$%2-!& -*1& 0,%&'2%,*-$ :

b. Check the current level of activity on the entire cluster.

12$)3*2'1 /&'


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STEP ACTION

5. Check the overall latency for each node in the cluster.

$%2%,$%,!$ $)*+0/&',*1,! 0-*1& !"#$%&'8098 0,-$%2-!& "2%&-!=0,%&'2%,*-$ :

$%2%,$%,!$ $)*+0/&',*1,! 0-*1& !"#$%&'809; 0,-$%2-!& "2%&-!=0,%&'2%,*-$ :

6. Check the throughput by cluster.

$%2%,$%,!$ $)*+0/&',*1,! 0,%&'2%,*-$ :

7. Check the throughput by volume for volume vs2_vol01.

$%2%,$%,!$ $)*+0/&',*1,! 0*3>&!% 4*"#5& 0,-$%2-!& 4$;?4*"98 0,%&'2%,*-$:

How can you make the output more readable?

8. Normally at this point in the baseline check, you would check the ifnet status by using thecommand that follows; however, because the lab kits do not have any ifnets defined, the

command does nothave to be run at this time.

If you want to do so at this time, check the throughput by interface.

$%2%,$%,!$ $)*+0/&',*1,! 0*3>&!% ,&!% 4*"#5& 0!*#-%&' B"2%&-!= 0$25/"&0,1$25/"&?32$&",-&8

12. Check volume latency for a specific volume.

$%2%,$%,!$ $)*+0/&',*1,! 0*3>&!% 4*"#5& 0,-$%2-!& 4$;?4*"980,%&'2%,*-$ :

13. Check volume activity.

$%2%,$%,!$ $)*+ 0*3>&!% 4*"#5& 0!*#-%&' B12%2 0$25/"&0,1$25/"&?32$&",-&8


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STEP ACTION

14. Check aggregate latency.

$%2%,$%,!$ $)*+ 0*3>&!% 2..'&.2%& 0!*#-%&' #$&'?'&21$A#$&'?+',%&$0$25/"&0,1 $25/"&?32$&",-&8

15. Check disk latency.

$%2%,$%,!$ $)*+ 0*3>&!% 1,$7 0!*#-%&' B"2%&-!= 0$25/"&0,1

$25/"&?32$&",-&8

16. Check port throughput.

$%2%,$%,!$ $)*+ 0*3>&!% /*'% 0!*#-%&' B12%2 0$25/"&0,1 $25/"&?32$&",-&8

17. Check the LIF or IP throughput.

$%2%,$%,!$ $)*+ 0*3>&!% ",< 0!*#-%&' B12%2 0$25/"&0,1 $25/"&?32$&",-&8

18. After completing the task, turn off the statistics data collection.

$%2%,$%,!$ $%*/ 0$25/"&0,1 $25/"&?32$&",-&8

19. Clean up any old samples.

$%2%,$%,!$ $25/"&$ $)*+

$%2%,$%,!$ $25/"&$ 1&"&%& 0$25/"&0,1 B

TASK 3: PERFORMANCE MONITORING FROM THE CLUSTER SHELL

In this task, you use cluster shell commands to monitor cluster performance.

STEP ACTION

1. On your Windows Server desktop, double-click the CourseFilesshortcut:

Copy sio_ntap.tar.gzto the z:drive.

2. Using PuTTY, log in to the Linux server as root(password: Netapp123).

3. Mount the vs2 export via NFS, using the following IP:

5*#-% 0% -


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STEP ACTION

5. Extract (untar) the contents of sio_ntap.tar.gzinto the current directory.

%2' H4&!% -


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STEP ACTION

14. After the SIO command ends and the command prompt returns, go to the PuTTY session andturn off data collection.

$%2%,$%,!$ $%*/ 0$25/"&0,1 $25/"&?-&!% -


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STEP ACTION

26. After the SIO command ends and the command prompt returns, go to the PuTTY session andturn off data collection.

$%2%,$%,!$ $%*/ 0$25/"&0,1 $25/"&?-&!% -


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STEP ACTION

39. While the SIO is running, in your cluster1 PuTTY session, migrate your NAS LIF that is

associated with *+#,*-",./0.

-&%+*'7 ,-%&'


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STEP ACTION

1. Unlock the diag userid.

$&!#',%= "*.,- #-"*!7 0#$&'-25& 1,2.

2. Change the diag userids password.

$&!#',%= "*.,- /2$$+*'1 0#$&'-25& 1,2.

3. At the Enter a new passwordprompt, typeM&%2//8;J.

4. At the Enter it againprompt, typeM&%2//8;Jagain.

TASK 5: USING THE PERFORMANCE AND STATISTICS COLLECTOR (PERFSTAT)

In this task, you use Perfstat to collect detailed profile and troubleshooting data samples from a cluster.

STEP ACTION

1. On your Windows Server desktop, double-click the CourseFilesshortcut:

NOTE:Normally, you would open a browser and navigate to My Support > Downloads >Utility Toolchest on the Support site and download the Perfstat Converged compressed file foreither Windows or Linux. This process has already been completed on your Windows Server.

2. In the CourseFiles directory, create a directory called Perfstat, and then copy the perfstat8.exefile from the zip file into the Perfstat directory.

3. In the Perfstatdirectory, create two directories called workload1and workload2.

4. On the Windows Server desktop, double-click the Command Prompticon and navigate toN@OP$&'$OQ15,-,$%'2%*'OR&$7%*/ON*#'$&S,"&$OT&'


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STEP ACTION

9. After the Perfstat operation is complete, issue Ctrl-Cin the Linux server session to stop the SIOrun.

10. Look for the protocol latencies, CPU utilization, network utilization, and average per diskutilization in the Perfstat data.

11. In the first CommandPromptwindow, navigate to

N@OP$&'$OQ15,-,$%'2%*'OR&$7%*/ON*#'$&S,"&$OT&'


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E5-1 Performance Analysis on Clustered Data ONTAP: OnCommand Management Tools


MODULE 5: ONCOMMAND MANAGEMENT TOOLS



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E6-1 Performance Analysis on Clustered Data ONTAP: Storage QoS


MODULE 6: STORAGE QOS

EXERCISE

In this exercise, you work with the storage quality of service (QoS) feature to prevent problem workloads andtenants from impacting other workloads and tenants.

OBJECTIVES


Reactively limit throughput to a workload by associating the workload with a QoS policy group Proactively monitor workload performance by associating a workload with a QoS policy group Isolate a tenant workload by associating the workload with a QoS policy group

TASK 1: REACTIVELY LIMIT THROUGHPUT TO A WORKLOAD BY ASSOCIATING THE WORKLOAD

WITH QOS POLICY GROUP

In this task, you use Iometer to generate a 50% write and 50% read workload on a LUN and set up a storageQoS limit to throttle the workload that is associated with the LUN.

STEP ACTION

1. On the taskbar, click the Iometer icon and, if prompted, approve the Iometer EULA.

The Iometer window should open.


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STEP ACTION

2. In the left pane, select the WIN2K8-01node.

3. On the Disk Targets tab, specify the following:

Targets: D:lun_vsSCSI1_1 drive Maximum Disk Size: 80000 Starting Disk Sector: 0 # of Outstanding I/Os: 16


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STEP ACTION

4. Click the Access Specificationstab.

5. Under Global Access Specifications, select 512B; 50% Read; 0% random.


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STEP ACTION

6. Click the Addbutton.

7. Click the Test Setuptab.

8. On the Test Setuptab, specify the following:

Test Description: QoS Exercise Ramp Up Time: 4 seconds Record Results: None


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STEP ACTION

9. Click the Results Displaytab.

10. Change the Update Frequency to 4seconds.

This reduces the load on the Windows machine to update the Iometer interface.


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STEP ACTION

11. In the toolbar, click the Start Testsbutton (a green flag).

12. Open Windows Explorer to the D:lun_vsISCSI1_1drive and notice a new file, iobw.tst.

This is the test file that is growing until it is 40,000 KB (80,000 x 512 B).

13. Notice that, when the file reaches its maximum size, the ramp up time begins to count down forfour seconds.

The ramp up time ensures that the storage is stable before the tests begin.


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STEP ACTION

14. When the 50% read and 50% write test results begin to appear, notice that the total I/Os persecond (IOPS) are recorded on the top row of the display output.

NOTE:On the test system, the total IOPS will probably fall in a range below that of a clusteredsystem running on nonvirtualized equipment. Remember that this is a Windows machine and acluster running in a shared virtualized environment.

15. Leave the test running.


17. Using the !"#"$!"$%!command, identify the volume or LUN that is doing the most IOPS.

18. Show the current storage QoS policies.

&'!(')$%*+,-'.( !0'1


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STEP ACTION

19. Switch back to the Iometer to see the current total IOPS.

20. Create a new storage QoS policy.

NOTE:If Iometers current total IOPS is over 1000, set the +2#3+"0-'.,0(."parameter to

4555$'(!; otherwise, set it to 655$'(!.

&'! (')$%*+,-'.( %-7#"7 +(')$%*+,-'.( 2#3"(8(')$%* +9!7-97- 9!:;


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TASK 2: PROACTIVELY MONITOR WORKLOAD PERFORMANCE BY ASSOCIATING A WORKLOAD

WITH A QOS POLICY GROUP

In this task, you set up a storage QoS limit for a volume and use Iometer to generate a 50% write and 50%read workload on the volume.

STEP ACTION


2. Create a new storage QoS policy.

&'! (')$%*+,-'.( %-7#"7 +(')$%*+,-'.( (-797>"8(')$%* +9!7-97- 9!A +2#3+"0-'.,0(." 655$'(!

3. Show the current storage QoS policies.

&'! (')$%*+,-'.( !0'1

4. You have identified vs2_vol01 as a new and potentially runaway workload.

Associate the storage QoS policy to the vs2_vol01 volume.

NOTE:You can associate a storage QoS policy to an SVM with FlexVol volumes, LUNs,volumes, or files.

9').27 2'@$=* 9!A89')54 +9!7-97- 9!A +&'!+(')$%*+,-'.( (-797>"8(')$%*

5. Verify the current throughput from the storage.

&'! !"#"$!"$%! (7-='-2#>%7 !0'1 $"7-#"$'>! ?

6. On the taskbar, click the Iometer icon.



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STEP ACTION



Targets: Z drive Maximum Disk Size: 20000 Starting Disk Sector: 0 # of Outstanding I/Os: 16


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STEP ACTION


10. Under Global Access Specifications, select 4K; 50% Read; 0% random.


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STEP ACTION






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STEP ACTION





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STEP ACTION


17. Open Windows Explorer to the Zdrive and notice a new file, iobw.tst.

This is the test file that is growing until it is 80,000 KB (20,000 x 4 KB).

18. Notice that, when the file reaches its maximum size, the ramp up time begins to count down for

four seconds.



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STEP ACTION

19. When the 50% read and 50% write test results begin to appear, notice that the total IOPS arerecorded on the top row of the display output.

NOTE:Remember that this is a Windows machine and a cluster running in a shared virtualizedenvironment.


21. Notice the total IOPS:


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STEP ACTION

22. In the PuTTY window, verify the current throughput from the storage.

&'! !"#"$!"$%! (7-='-2#>%7 !0'1 $"7-#"$'>! ?

23. When your testing is complete, stop the Iometer test by clicking the Stopbutton on thetoolbar.

24. In the PuTTY window, delete the policy.

&'! (')$%*+,-'.( @7)7"7 +(')$%*+,-'.( (-797>"8(')$%*

25. Close Iometer.

TASK 3: ISOLATE A TENANT WORKLOAD BY ASSOCIATING THE WORKLOAD WITH A QOS

POLICY GROUP

In this task, you set up a storage QoS tenant limit at the SVM level and use Iometer to generate a 50% writeand 50% read workload on one of the tenants.

STEP ACTION


2. Create three new storage QoS policies.

&'! (')$%*+,-'.( %-7#"7 +(')$%*+,-'.( "7>#>"48(')$%* +9!7-97- 9!4+2#3+"0-'.,0(." 655$'(!

&'! (')$%*+,-'.( %-7#"7 +(')$%*+,-'.( "7>#>"A8(')$%* +9!7-97- 9!A+2#3+"0-'.,0(." 655$'(!

&'! (')$%*+,-'.( %-7#"7 +(')$%*+,-'.( "7>#>"B8(')$%* +9!7-97- 9!:;%7 !0'1 $"7-#"$'>! ?


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STEP ACTION

6. On the taskbar, click the Iometer icon.




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STEP ACTION


Targets: Z drive Maximum Disk Size: 20000 Starting Disk Sector: 0 # of Outstanding I/Os: 16



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STEP ACTION

10. Under Global Access Specifications, select 4K; 50% Read; 0% random.




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STEP ACTION





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STEP ACTION





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STEP ACTION

17. Open File Explorer to the Zdrive and notice a new file, iobw.tst.

This is the test file that is growing until it is 80,000 KB (20,000 x 4 KB).

18. Notice that, when the file reaches its maximum size, the ramp up time begins to count down forfour seconds.



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STEP ACTION

19. When the 50% read and 50% write test results begin to appear, notice that the total IOPS arerecorded on the top row of the display output.

NOTE:Remember that this is a Windows machine and a cluster running in shared virtualizedenvironment.


21. In the PuTTY window, verify the current throughput from the storage.

&'! !"#"$!"$%! (7-='-2#>%7 !0'1 $"7-#"$'>! ?


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STEP ACTION

22. Switch back to the Iometer to see the current total IOPS.

23. When your testing is complete, stop the Iometer test by clicking the Stopbutton on thetoolbar.

24. Close Iometer.

END OF EXERCISE


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E7-1 Performance Analysis on Clustered Data ONTAP: Summary


MODULE 7: SUMMARY



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A-1 Performance Analysis on Clustered Data ONTAP: Appendix A: Answers


NETAPP UNIVERSITY

Performance Analysis on Clustered Data ONTAP

Appendix A: Answers

Course ID: STRSW-ILT-PERFCDOTCatalog Number: STRSW-ILT-PERFCDOT-EGContent Version: 1.0


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MODULE 2: PERFORMANCE OVERVIEW

EXERCISE

TASK 5: IDENTIFY CLUSTERED DATA ONTAP COMPONENTS

In this task, you use either System Manager or the clustered Data ONTAP CLI to identify key clustered DataONTAP components and revert any LIFs that are not on their home ports.

STEP ACTION

1. Analyze and identify the following list of clustered Data ONTAP components:

Aggregates __aggr0_n1, aggr0_n2, n01_aggr1,n02_aggr1____________________________________________________________

Storage virtual machines __cluster1, cluster1-01, cluster1-02, vs1, vs2,vsISCSI1_________________________________________________

Volumes ________________________________________________________________vol0,vol0, vs1_root, vs2_root, vs2_vol01, lun_ vsISCSI1_1 _vol, vsISCSI1_root

LUNs __/vol/lun_vsISCSI1_1_vol/lun_vsISCSI1_1________________________________________________________________

Licenses (which features are installed?) __Base, Insight Balance, CIFS, NFS,iSCSI______________________________________

CIFS Shares __admin$, ipc$, rootdir, vol1, ~%w____________________________________________________________

LIFs (are all LIFs home?)__No__________________________________________________


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MODULE 3: CLUSTERED STORAGE SYSTEM WORKLOADS AND BOTTLENECKS

EXERCISE

TASK 1: EXAMINE THE STATISTICS CATALOG COMMAND

In this task, you issue the three !"#"$!"$%! %#"#'()commands and exercise the supporting parameters,

using different privilege levels.

STEP ACTION

4. What command syntax would you use to display only the advanced level statistics objectswithout their descriptions?

!"#"$!"$%! %#"#'() (*+,%" !-(. /01$2$',), #32#4%,3 /5$,'3! (*+,%"

5. What command syntax would you use to display statistics objects that are associated withstorage virtual machines (SVMs)?

NOTE:You should still be in the advanced privilege level.

!"#"$!"$%! %#"#'() (*+,%" !-(. /(*+,%" 62!,12,16

How many statistics objects are there in the list? 11 (in Clustered Data ONTAP 8.2)

7. What command syntax would you use to display the instance names that are available for thestatistics object that represents SVMs that have LIFs associated with them?

!"#"$!"$%! %#"#'() $4!"#4%, !-(. /(*+,%" '$572!,12,1

How many instance names are there in the list? 5

8. What command syntax would you use to display the instance names that are available for thestatistics object that represents SVMs that have volumes associated with them?

!"#"$!"$%! %#"#'() $4!"#4%, !-(. /(*+,%" 2('89,72!,12,1

How many instance names are there in the list? 3

9. What command syntax would you use to display the instance names that are available for thestatistics object that represents the disk that is associated with the second node in the cluster(cluster1-02)?

!"#"$!"$%! %#"#'() $4!"#4%, !-(. /(*+,%" 3$!: /4(3, %'8!",1;/ /$4!"#4%, 2!= /%(84",1 6 /!#90',/$3!#90',?45!2>?#39

!"#"$!"$%! !-(. /(*+,%" 45!2> /$4!"#4%, 2!= /%(84",1 6 /!#90',/$3!#90',?45!2>?#32

Was there any difference in the displays? Yes


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STEP ACTION

5. What command syntax would you use to display all of the latency related counters for diskv4.20?

!"#"$!"$%! !-(. /(*+,%" 3$!: /$4!"#4%, 2@A=< /%(84",1 6'#",4%B6/!#90',/$3 !#90',?3$!:

How many counters are there in the list? 10

6. What command syntax would you use to display all of the user_read_latency counters for alldisks in the cluster?

!"#"$!"$%! !-(. /(*+,%" 3$!: /$4!"#4%, 6 /%(84",1 8!,1?1,#3?'#",4%B/!#90',/$3 !#90',?3$!:

How many counters are there in the list? 28

8. What command syntax would you use to display all of the user_read_latency counters that aregreater than 10000us for all disks in the cluster, limiting the display to only the counter andvalue fields?

!"#"$!"$%! !-(. /(*+,%" 3$!: /$4!"#4%, 6 /%(84",1 8!,1?1,#3?'#",4%B/!#90',/$3 !#90',?3$!: /5$,'3! %(84",1C2#'8, /2#'8, D;


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TASK 3: DEFINING WORKLOAD CHARACTERISTICS

In this task, you gather statistical data and evaluate the data to determine the workload characteristics.

STEP ACTION



Read Write

Throughput 0/sec 99/sec

Latency - 6.32ms

Operation Size - 32K

Concurrency 0 0.63

Randomness -


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STEP ACTION


%'8!",1;776D !"#"$!"$%! !-(. /(*+,%" %$5! /$4!"#4%, 6 /%(84",1 %$5!?1,#3?(0! /!#90',/$3!#90',?%$5!;

E*+,%"7 %$5!

F4!"#4%,7 2!=

G"#1"/"$9,7 HI==I= =;7JK7=;

L43/"$9,7 HI==I= =;7JM7;M

N'8!",17 %'8!",1;

N(84",1 O#'8,

//////////////////////////////// ////////////////////////////////

%$5!?1,#3?(0! 7>;

N'8!",17 %'8!",1;

N(84",1 O#'8,

//////////////////////////////// ////////////////////////////////

%$5!?.1$",?(0! ;HK8!

AAA

P ,4"1$,! .,1, 3$!0'#B,3A

%'8!",1;776D !"#"$!"$%! !-(. /(*+,%" 2('89, /$4!"#4%, 6 /%(84",1 %$5!?.1$",?'#",4%B /!#90',/$3 !#90',?%$5!=

AAA

E*+,%"7 2('89,

F4!"#4%,7 2!=?2('7>;

N'8!",17 %'8!",1;

N(84",1 O#'8,

//////////////////////////////// ////////////////////////////////

%$5!?.1$",?'#",4%B /

E*+,%"7 2('89,

F4!"#4%,7 2!FGNGF;?1(("

G"#1"/"$9,7 HI==I= ==7=;7JJ

L43/"$9,7 HI==I= ==7=>7>;

N'8!",17 %'8!",1;

N(84",1 O#'8,

//////////////////////////////// ////////////////////////////////

%$5!?.1$",?'#",4%B /

P ,4"1$,! .,1, 3$!0'#B,3A


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STEP ACTION


%'8!",1;776D !"#"$!"$%! !-(. /(*+,%" %$5! /$4!"#4%, 6 /%(84",1 %$5!?1,#3?!$Q,?-$!"( /!#90',/$3 !#90',?%$5!=

E*+,%"7 %$5!

F4!"#4%,7 2!=

G"#1"/"$9,7 HI==I= ==7=;7JJ

L43/"$9,7 HI==I= ==7=>7>;

N'8!",17 %'8!",1;

N(84",1 O#'8,

//////////////////////////////// ////////////////////////////////

%$5!?1,#3?!$Q,?-$!"( /

< *B",! 7>;

N'8!",17 %'8!",1;

N(84",1 O#'8,

//////////////////////////////// ////////////////////////////////

%$5!?.1$",?!$Q,?-$!"( /

< *B",!

E*+,%"7 %$5!

F4!"#4%,7 2!=

G"#1"/"$9,7 HI==I= ==7=J7JK

L43/"$9,7 HI==I= ==7=P7>;

N'8!",17 %'8!",1;

N(84",1 O#'8,

//////////////////////////////// ////////////////////////////////

%$5!?1,#3?(0! ;JH

%$5!?1,#3?(0! 8!

E*+,%"7 2('89,

F4!"#4%,7 2!FGNGF;?1(("

G"#1"/"$9,7 HI==I= ==7=J7JK

L43/"$9,7 HI==I= ==7=P7>;N'8!",17 %'8!",1;

N(84",1 O#'8,

//////////////////////////////// ////////////////////////////////

%$5!?.1$",?'#",4%B /

P ,4"1$,! .,1, 3$!0'#B,3A


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STEP ACTION


%'8!",1;776D !"#"$!"$%! !-(. /(*+,%" %$5! /$4!"#4%, 6 /%(84",1 %$5!?1,#3?!$Q,?-$!"( /!#90',/$3 !#90',?%$5!>

E*+,%"7 %$5!

F4!"#4%,7 2!=

G"#1"/"$9,7 HI==I= ==7=J7JK

L43/"$9,7 HI==I= ==7=P7>;

N'8!",17 %'8!",1;

N(84",1 O#'8,

//////////////////////////////// ////////////////////////////////

%$5!?1,#3?!$Q,?-$!"( /

< *B",!

E*+,%"7 %$5!

F4!"#4%,7 2!=

G"#1"/"$9,7 HI==I= ==7=J7JK

L43/"$9,7 HI==I= ==7=P7>;

N'8!",17 %'8!",1;

N(84",1 O#'8,

//////////////////////////////// ////////////////////////////////

%$5!?.1$",?!$Q,?-$!"( /

< *B",!

!"#"$!"$%! !-(. /(*+,%" 2('89, /$4!"#4%, 6 /%(84",1 45!?1,#3?'#",4%B/!#90',/$3 !#90',?45!2>!"#"$!"$%! !-(. /(*+,%" 2('89, /$4!"#4%, 6 /%(84",1 45!?.1$",?'#",4%B/!#90',/$3 !#90',?45!2>

!"#"$!"$%! !-(. /(*+,%" 45!2> /$4!"#4%, 6 /%(84",145!2>?1,#3?!$Q,?-$!"( /!#90',/$3 !#90',?45!2>!"#"$!"$%! !-(. /(*+,%" 45!2> /$4!"#4%, 6 /%(84",145!2>?.1$",?!$Q,?-$!"( /!#90',/$3 !#90',?45!2>

!"#"$!"$%! !-(. /(*+,%" 1,#3#-,#3 /$4!"#4%, 6 /%(84",1 1#43?1,#3?1,X!/!#90',/$3 !#90',?45!2>!"#"$!"$%! !-(. /(*+,%" 1,#3#-,#3 /$4!"#4%, 6 /%(84",1 !,X?1,#3?1,X!/!#90',/$3 !#90',?45!2>


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MODULE 4: CLUSTER PERFORMANCE MONITORING AND ANALYSIS

EXERCISE

TASK 1: PERFORM INITIAL HEALTH CHECKS ON THE CLUSTER

In this task, you query the cluster to assess the initial health status.

STEP ACTION

2. Check to see if all of the nodes are healthy.

%'8!",1 !-(.

%'8!",1;77D %'8!",1 !-(.

Z(3, b,#'"- L'$)$*$'$"B

///////////////////// /////// ////////////

%'8!",1;/ > >H;< %'8!",1;/ =< %'8!",1;/


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STEP ACTION

4. Using the advanced privilege level, check to see if the cluster connectivity is healthy.

%'8!",1 0$4)/%'8!",1 /4(3, '(%#'

%'8!",1;776D %'8!",1 0$4)/%'8!",1 /4(3, '(%#'b(!" $! %'8!",1;/A==; "( _,9(", ;KHA=J@A==@A=;;j(%#' ;KHA=J@A=>


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STEP ACTION

9. Check to see if any disks are in a broken state.

!"(1#), 3$!: !-(. /!"#", *1(:,4

%'8!",1;77D !"(1#), 3$!: !-(. /!"#", *1(:,4c-,1, #1, 4( ,4"1$,! 9#"%-$4) B(81 X8,1BA

TASK 2: BASELINE PERFORMANCE MONITORING FROM THE CLUSTER SHELL

In this task, you use cluster shell commands to monitor cluster performance.

STEP ACTION

1. Check the performance status:

a. Check the current level of activity on each node of the cluster.

!"#"$!"$%! !-(./0,1$(3$% /4(3, %'8!",1;/P%08 "("#' 3#"# 3#"# 3#"# %'8!",1 %'8!",1 %'8!",1 3$!: 3$!:

*8!B (0! 45!/(0! %$5!/(0! *8!B 1,%2 !,4" *8!B 1,%2 !,4" 1,#3 .1$",//// //////// //////// //////// //// //////// //////// /////// //////// //////// //////// ////////

\$4$989!7;n < < < ;U HHU n


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STEP ACTION

2. Check the current NAS operations level on the entire cluster.

3#!-*(#13 0,15(19#4%, !-(. (0,1#"$(4!

%'8!",1;77D 3#!-*(#13 0,15(19#4%, !-(. /(0,1#"$(4!c("#' ]2,1#), ZlG ZlG NFlG NFlG

Z(3, E0!I! j#",4%B E0!I! j#",4%B E0!I! j#",4%B/////// /////// //////// /////// //////// /////// ////////%'8!",1;/


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STEP ACTION

3. Use the $4!"#4%,parameter to show everything and notice the overall latency by protocolfields.

3#!-*(#13 0,15(19#4%, !-(. $4!"#4%,

%'8!",1;77D 3#!-*(#13 0,15(19#4%, !-(. /$4!"#4%,

Z(3,7 %'8!",1;/


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STEP ACTION

4. Check the overall latency for the entire cluster.

!"#"$!"$%! !-(./0,1$(3$% /$4!"#4%, '#",4%B /$",1#"$(4! @

%'8!",1;77D !"#"$!"$%! !-(./0,1$(3$% /$4!"#4%, '#",4%B /$",1#"$(4! @%'8!",17!899#1B7 %'8!",1A%'8!",17 ;7;H7;M%08 "("#' 3#"# 3#"# 3#"# %'8!",1 %'8!",1 %'8!",1

3$!: 3$!:*8!B (0! 45!/(0! %$5!/(0! *8!B 1,%2 !,4" *8!B 1,%2 !,4"1,#3 .1$",

//// //////// //////// //////// //// //////// //////// /////// //////// //////// //////// ////////>n < < < P;U =PHU TU @;>TU


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STEP ACTION

5. Check the overall latency for each node in the cluster.

!"#"$!"$%! !-(./0,1$(3$% /4(3, %'8!",1;/n < < <


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STEP ACTION

6. Check the throughput by cluster.

!"#"$!"$%! !-(./0,1$(3$% /$",1#"$(4! @

%'8!",1;77D !"#"$!"$%! !-(./0,1$(3$% /$",1#"$(4! @%'8!",17!899#1B7 %'8!",1A%'8!",17 ;7=>7@H%08 "("#' 3#"# 3#"# 3#"# %'8!",1 %'8!",1 %'8!",1

3$!: 3$!:*8!B (0! 45!/(0! %$5!/(0! *8!B 1,%2 !,4" *8!B 1,%2 !,4"1,#3 .1$",

//// //////// //////// //////// //// //////// //////// /////// //////// //////// //////// ////////;


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STEP ACTION

7. Check the throughput by volume for volume vs2_vol01.

!"#"$!"$%! !-(./0,1$(3$% /(*+,%" 2('89, /$4!"#4%, 2!=?2('


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STEP ACTION

9. Check the throughput by LIF (IP).

!"#"$!"$%! !-(./0,1$(3$% /(*+,%" '$5 /$4!"#4%, 2!=72!=?%$5!?45!?'$5;/$",1#"$(4! @

%'8!",1;77D !"#"$!"$%! !-(./0,1$(3$% /(*+,%" '$5 /$4!"#4%,2!=72!=?%$5!?45!?'$5; /$",1#"$(4! @%'8!",1;7 '$5A2!=72!=?%$5!?45!?'$5;7 ;7>K7=K$4!"#4%, $4!"#4%, 4(3, 4(3, 01(%,!! 1,%2 1,%2

1,%2 !,4" !,4" !,4" 2!,12,1 2!,12,14#9, 88$3 4#9, 88$3 4#9, 3#"# ,11(1!

0#%:," 3#"# ,11(1! 0#%:," 80?"$9, $3 4#9,//////// //////// //////// //////// //////// //////// //////// //////// //////// //////// //////// //////// //////// ////////2!=72!=?%$5!?45!?'$5; ;


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STEP ACTION

11. Check the latency by volume for the entire cluster.

!"#"$!"$%! !-(. /(*+,%" 2('89, /%(84",1 6'#",4%B /!#90',/$3!#90',?*#!,'$4,;

%'8!",1;776D !"#"$!"$%! !-(. /(*+,%" 2('89, /%(84",1 6'#",4%B /!#90',/$3 !#90',?*#!,'$4,;

E*+,%"7 2('89,

F4!"#4%,7 '84?2!FGNGF;?;?2('G"#1"/"$9,7 ;7>M7;M7;M7;

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