power of storage free webinar

© 2009 IBM Corporation

All statements regarding IBM's future direction and intent are subject to change without notice, and represent goals and objectives only.

The Power of Storage – SSDs to SAN

IBM Power Systems

Craig Johnson

Power Systems Software



The Power of i – Solid State Drives

IBM Power Systems

Mark Olson

Power Systems Hardware


IBM Power Systems

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Solid State Drives (SSD) Matching Applications’ Need

Today‟s applications can often benefit with a faster storage option

SSD high speed can really help get rid of I/O bottlenecks, bridging the gap between memory and disk speeds

– Improve performance

– And save space, energy at the same time

Processors Memory DiskSSD

Very, very, very, very, very fast

Very, very, very fast

Very, very slow comparativelyFast

< 10‟s ns ~100 ns ~200,000 ns1,000,000 -

8,000,000 ns

Access Speed


IBM Power Systems

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SSD Performance – Magnitudes Faster than Disk (HDD)

0

5,000

10,000

15,000

20,000

25,000

30,000

SSD HDD

Random I/O’s per second(Sustained )

Performance

SSD

HDD

Capacity

HDD

SSD

best bestCost

Cost


IBM Power Systems

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Example: Batch Window Reduction

Bank running IBM i needed to reduce month

end batch run time from 4+ hours to under 3

hours

SSDs cut 1.5 hours from batch run time

– Plus a 16% reduction in # of disk drives

Leveraged recent IBM i enhancements

– Directed 8 DB2 Objects (table, index, view) to SSD

Batch Performance Runs

0

1

2

3

4

5

Ho

urs

72 HDD 72 HDD + 8 SSD 60 HDD + 4 SSD

# of SAS

Disk Drives

# of

SSDs

Batch Run

Time

Base run 72 0 4:22

SSD run 1 72 8 2:43

SSD run 2 60 4 2:48

40% Reduction

Source: IBM Power Systems Performance and Benchmark Center 5-23-09


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Mixed SSD + HDD Can be Great Solution

Cold

Hot

Hot data may be only 10-20% capacity, but represent 80-90% activity

SSD offers best price performance when focused on “hot” data

HDD offers best storage cost, so focus it on “cold” data …. a hierarchal approach

It is typical for data bases to have a large percentage of data which is infrequently used

(“cold”) and a small percentage of data which is frequently used (“hot”)

May be able to use larger HDD and/or a larger % capacity used

Can run SSD closer to 100% capacity


IBM Power Systems

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Implementing “Hot” and “Cold” Data

IBM i 5.4 and later offers best integrated SSD options in the industry

Three options, (can use separately or all together):

1. SSD “Trace and Balance” function part of IBM i

– Monitors by partition or Aux Storage Pool to determine hot/cold

– Upon request, automatically moves hot data to SSD, cold to HDD

– Can re-monitor & rebalance any time

2. Can specify specific data base objects to be placed on SSD

3. A few key OS files automatically placed on SSD if present


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Scenario: Complete HDD Refresh

Modernize older HDD subsystem, replacing all old HDD with new SSD+HDD Put “hot” active data on SSD & put “cold” data on HDD

– Combination has better price performance than using all SSD Save space, power/cooling, improve performance and increase storage capacity

POWER5/6 5xx w/ older SCSI disk (360) 35GB disk = 12.6 TB 152 U rack space (4.1 racks)

POWER6 5xx w/ SSD & newer SAS disk (32) 69 GB SSD = 2.2 TB (48) 282 GB disk = 13.5 TB 36 U rack space (1 rack)

Assumptions: Amount customer useable space net of parity protection not shown Ratio of hot to cold data for this scenario = 1 : 6 Will vary by client and application * Impact/benefit of using a higher % of drive‟s capacity not considered Example uses 4 partitions equal in size and configuration for disk and controllers

4.5x fewer drives25% higher capacity


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Scenario: Existing HDD Refresh - SSD Turbo-charger

Problem: Older HDD not meeting performance needs Normal tuning efforts have not worked Prefer not to mix newer HDD with older HDD Leases/budgets make it difficult to replace existing HDD Prefer not to invest more money in additional older HDD

Solution: Add SSD and keep HDD. Put “hot” data on SSD & keep “cold” data on HDD SSD gives performance boost to system …. SWAG 20-30% SSD provides new technology investment HDD usable capacity now larger … SWAG 20-30%...as average capacity utilization increased HDD financial investment protected/leveraged

POWER6 5xx w/ older SCSI disk(360) 35GB disk = 12.6 TB

(12) 69 GB SSD = 756 GPlus xx% more GB usable from HDD

Assume

• older drives 30% data capacity

• 80-20 cold-hot split

Then: 12 SSD covers hot data needsSystem configuration and usage will impact results and applicability


IBM Power Systems

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Scenario: Existing SAN Refresh - SSD Turbo-charger

Problem: Older HDD in SAN not meeting performance needs

Normal tuning efforts have not worked

Leases/budgets make it difficult to replace existing SAN

Prefer not to invest more money in additional older SAN resource

Solution: Add SSD and keep SAN. Put “hot” data on SSD & keep “cold” data on SAN

SSD gives performance boost to system …. SWAG 20-40%

SSD provides new technology investment

SAN usable capacity can be larger SWAG 10-20%...as average capacity utilization increased

HDD financial investment protected/leveraged

Same scenario works for SAN

(12) 69 GB SSD = 756 GPlus xx% more GB usable from HDD

Assume

• older drives 30% data capacity

• 80-20 cold-hot split

Then: 12 SSD covers hot data needsSystem configuration and usage will impact results and applicability

Note – additional operational considerations if SAN using higher level functions such as flash copy, metro mirroring, etc.


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Will SSD Benefit Your POWER6 Configuration?

Yes, will benefit, BUT want to focus SSD use where the best return on investment (ROI) – addressing your batch window or response time challenges caused by I/O bottleneck

SSD‟s best ROI is with workloads with high percentage of random reads,

– Lower ROI with high percentage writes or predictable reads

Quick, easy way to analyze your specific configuration: just-released SSD Analyzer Tool & instructions

– Down load from IBM Techdocshttp://www.ibm.com/support/techdocs/atsmastr.nsf/WebIndex/PRS3780

– Collect performance data as usual on IBM i 5.4 or 6.1 system

– SSD Analyzer evaluates collected data

Provides a “yes”, “probably no”, or “maybe” answer

IBM Techline and/or ATS marketing support groups can then further assist in analyzing details of SSD configuration needed


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Some SSD Specifics SFF SSD

3.5-inch SSD

69.7 GB capacity per SSD drive

– Enterprise class SSD (not cheap PC SSD)

SSD Located on POWER6 server

– 3.5-inch SAS drive bay of #5886 EXP 12S SAS Disk Drawer

– 3.5-inch SAS drive bay of Power 560/570 CEC

– SFF drive bay of Power 520/550 CEC

SFF & 3.5” attached to SAS adapter, just like “classic” SAS disk drives

– PCI-X 1.5 GB cache controller

– Embedded controller of Power 520/550 and Power 560/570

• Less horsepower than 1.5 GB controller, lower price

Contents protected like “classic” SAS drives

– Mirroring, RAID-5 or RAID-6 (and hot spare)

IBM i 5.4 or later

POWER6 servers (not POWER5 or earlier)


IBM Power Systems

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Power Systems SSD White Papers

IBM i-specific

– “Performance Value of Solid State Drives using IBM i”

– First published May 2009

More technology specific – AIX/IBM i/Linux appropriate

– “Performance Impacts of Flash SSDs Upon IBM Power Systems”

– First published June 2009

AIX-specific

– “Driving Business Value on Power Systems with Solid State Drives”

– First published April 2009

Above papers in Power Systems web site under “Resources/Literature”

– http://www.ibm.com/common/ssi/apilite?infotype=SA&infosubt=WH&lastdays=1825&hitlimit=2

00&ctvwcode=US&pubno=POW*USEN&appname=STGE_PO_PO_USEN_WH&additional=summ

ary&contents=keeponlit

SAP environment white paper with IBM i in SAP web site

– http://www.sdn.sap.com/irj/sdn/db4?rid=/library/uuid/90a1637e-065f-2c10-3ab7-bea9375fc88d

http://www.ibm.com/common/ssi/apilite?infotype=SA&infosubt=WH&lastdays=1825&hitlimit=200&ctvwcode=US&pubno=POW*USEN&appname=STGE_PO_PO_USEN_WH&additional=summary&contents=keeponlit



http://www.sdn.sap.com/irj/sdn/db4?rid=/library/uuid/90a1637e-065f-2c10-3ab7-bea9375fc88d











The Power of i – SAN Capabilities

Vess Natchev

IBM Systems Lab Services & Training


IBM Power Systems

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IBM i Direct Support for DS5000*

IBM i plans to support direct attachment to DS5000 storage in 4Q 2009 to enable simpler SAN planning and leverage midrange open storage

DS5000 benefits– Multiple RAID levels, including RAID 6

– Custom XOR processor for RAID calculations

– Consolidated storage for IBM i, Unix, Linux, Windows applications

– Can use FC or SATA drives

FC strongly recommended for IBM i production workloads

Support statements:– DS5100 and DS5300 only in 4Q 2009

– IBM 6.1.1

– POWER6 hardware

– POWER5(+) hardware not supported

– IBM 5.4 and 5.4.5 not supported

– Smart FC adapter (#5735, #5774, #5749 only)

– PowerVM and VIOS not required

DS5000 performance for IBM i– Significant improvement over DS4000 through VIOS, esp. RAID5

– Similar to DS5000 through VIOS

Power Hypervisor

* All statements regarding IBM's future direction and intent are subject to change or

withdrawal without notice, and represent goals and objectives only.


IBM Power Systems

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IBM i VIOS Support for DS5000

IBM i supports IBM DS5100 and DS5300 with PowerVM VIOS configurations to leverage the latest midrange storage offerings for storage consolidation of multiple workloads

DS5000 benefits– Multiple RAID levels, including RAID 6

– Custom XOR processor for RAID calculations

– Consolidated storage for IBM i, Unix, Linux, Windows applications

– Can use FC or SATA drives

FC strongly recommended for IBM i production workloads

VIOS can virtualize DS5000 storage to IBM i, AIX, Linux– PowerVM VIOS configurations with IBM i 6.1 partitions

– POWER6 processor-based tower and rack servers

– IBM is planning to support POWER6 processor-based blades

DS5000 performance for IBM i– Significant improvement over DS4000, esp. RAID5

– See DS5000 performance white paper at http://www.ibm.com/systems/i/advantages/perfmgmt/resource.html

Power Hypervisor

VIOS

http://www.ibm.com/systems/i/advantages/perfmgmt/resource.html


IBM Power Systems

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IBM i VIOS Support for SVC

Power Hypervisor

VIOS

http://www-03.ibm.com/systems/storage/software/virtualization/svc/specifications.html

IBM i supports IBM Systems Storage SAN Volume Controller with PowerVM VIOS configurations to help reduce costs and improve flexibility of enterprise storage environments

SVC is combines storage capacity from multiple disk systems into a single reservoir that can be used by multiple servers

– Increasing storage virtualization

– Improving productivity of storage administrators

– Enhancing availability with copy services

SVC supports heterogeneous storage and operating systems– Storage: including IBM and non-IBM disk subsystems

– Support based on SVC data sheet

– OS: including AIX, Linux, Windows, and UNIX

VIOS can virtualize SVC storage to IBM i – PowerVM VIOS configurations with IBM i 6.1 partitions

– SVC and SVC Entry Editions

– POWER6 processor-based servers and blades


IBM Power Systems

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IBM i VIOS Support for XIV

Power Hypervisor

VIOS

http://www-03.ibm.com/systems/storage/software/virtualization/svc/specifications.html

IBM i supports IBM XIV Storage System with PowerVM VIOS configurations to leverage simplicity in SAN configuration

XIV benefits:– Massive parallelism

– No arm skew (hot spots)

– Thin provisioning built-in

– Ease of configuration (no RAID array creation, simple GUI)

– Rapid self-healing

– Off-the-shelf components (cost)

VIOS can virtualize XIV storage to IBM i– PowerVM VIOS configurations with IBM i 6.1 partitions

– POWER6 processor-based servers and blades


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IBM Systems Storage Support for IBM i

Direct Attach

DS5100* DS5300* DS6800 DS8100 DS8300

Systems POWER6* POWER6* POWER5/6 POWER5/6* POWER5/6*

Ports (max) Fibre -8 Fibre -16 Fibre - 8 Fibre - 64 Fibre - 128

# of drives (max) 256

FC/SATA

448

FC/SATA

128

FC, FATA

384

FC, FATA

1024

FC, FATA

Cache (max) 8 GB 16 GB 4 GB 128 GB 256 GB

RAID 0, 1, 3, 5, 6, 10 0, 1, 3, 5, 6, 10 5, 10 5, 6, 10 5, 6, 10

System Storage Managed

FlashCopy Yes Yes Yes Yes Yes

Metro Mirror Yes Yes Yes Yes Yes

Global Mirror Yes Yes Yes Yes Yes

PowerHA Managed

Metro Mirror No No Yes Yes Yes

Global Mirror No No Yes Yes Yes

Geo Mirror Yes Yes Yes Yes Yes

Logical Replication

iCluster & Other Yes Yes Yes Yes Yes

•Source: http://www-03.ibm.com/systems/storage/disk/product-compare.html

* All statements regarding IBM's future direction and intent are subject to change or

withdrawal without notice, and represent goals and objectives only.


IBM Power Systems

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IBM Systems Storage Support for IBM i

PowerVM VIOS Attach

DS3200 DS3400 DS4700 DS4800 DS5100 DS5300 XIV

Systems BladeCenter S

and H

POWER6

BladeCenter H

POWER6

BladeCenter H

POWER6

BladeCenter H

POWER6

BladeCenter H

POWER6

BladeCenter H

POWER6

BladeCenter H

VIOS Yes Yes Yes Yes Optional Optional Yes

Ports (max) SAS - 4 Fibre - 4 Fibre - 8 Fibre -8 Fibre -8 Fibre -16 Fibre -24

# of drives (max) 48 SAS/SATA 48 SAS/SATA 112

FC/SATA

224

FC/SATA

256

FC/SATA

448

FC/SATA

180

SATA

Cache (max) 1 GB 1 GB 4 GB 16 GB 8 GB 16 GB 120 GB

RAID 0, 1, 3, 5, 6, 10 0, 1, 3, 5, 6, 10 0, 1, 3, 5, 6, 10 0, 1, 3, 5, 10 0, 1, 3, 5, 6, 10 0, 1, 3, 5, 6, 10 Mirrored

System Storage Managed

FlashCopy Yes Yes Yes Yes Yes Yes Yes

Metro Mirror No No Yes Yes Yes Yes Yes

Global Mirror No No Yes Yes Yes Yes No

PowerHA Managed

Metro Mirror No No No No No No No

Global Mirror No No No No No No No

Geo Mirror Yes Yes Yes Yes Yes Yes Yes

Logical Replication

iCluster & Other Yes Yes Yes Yes Yes Yes Yes

•Source: http://www-03.ibm.com/systems/storage/disk/product-compare.html


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How to Configure Open Storage for IBM i

Step 1: Perform sizing

– Use Disk Magic, where applicable

– Use the PCRM, Ch. 14.5 – http://www.ibm.com/systems/i/advantages/perfmgmt/resource.html

– Number of physical drives is still most important

– VIOS itself does not add significant disk I/O overhead

– For production workloads, keep each i partition on a separate RAID array

Step 2: Use appropriate storage UI and Redbook for your environment to create LUNs for IBM i and attach to VIOS (or

use TPC or SSPC where applicable)

DS Storage Manager for

DS3200, DS3400, DS4700,

DS4800, DS5100, DS5300

DS8000 Storage Manager

for DS8100 and DS8300

SVC Console for

SVC

Before you start: IBM i Virtualization and Open Storage Read-me First –http://www.ibm.com/systems/i/os/

XIV Storage GUI for

XIV


http://www.ibm.com/systems/i/os/


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How to Configure Open Storage for IBM i, Cont.

Step 3: Assign LUNs to IBM i

– „cfgdev‟ in VIOS CLI necessary to detect new physical volumes if VIOS is running

– Virtualize whole LUNs/drives (“physical volumes”) to IBM i

– Do not use storage pools in VIOS

If using

HMC

If using

IVM

– Create VSCSI adapters for VIOS

and IBM i partitions

– Assign LUNs to IBM i in HMC

Requires latest HMC release

– Assign LUNs to IBM i in IVM


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VIOS Configuration: HMC System

1) Assign XIV volumes to FC adapters in VIOS using WWPNs2) In HMC: System->Configuration->Virtual Resources->Virtual Storage Management

No need to use VIOS command line

Assign volume to correct IBM i LPAR

Volume then becomes available to IBM i as DDxx


IBM Power Systems

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VIOS Configuration: IVM System

1) Assign XIV volumes to FC adapters in VIOS using WWPNs2) In IVM: View/Modify Virtual Storage Physical Volumes

No need to use VIOS command line

Assign volume to correct IBM i LPAR

Volume then becomes available to IBM i as DDxx


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IBM i View: Service Tools I

Virtual storage IOA is the VSCSI client adapter in IBM i partition

Disk units are virtual target devices mapped to LUNs in VIOS

Disk units show the same type and model regardless of backend storage subsystem


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IBM i View: Service Tools II

No concept of “IBM i protected” and “IBM i unprotected” LUNs with open storage

Standard open storage LUNs created, attached to AIX/VIOS-type host

Once virtualized by VIOS, LUNs will appear unprotected in IBM i

LUNs should not be mirrored in IBM (already protected on SAN)

LUNs assigned to ASPs/IASPs as any other disk


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IBM i View: Operating System

Type of virtualized disk is always 6B22 (same as when IBM i is hosting IBM i)

Size does not have to match physical disk unit sizes

Supported sizes for LUNs through VIOS are 160MB – 2TB


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• Production LPAR on IBM Power

server or Power Blade

• IBM i as client of VIOS

• Backup LPAR on IBM Power server or Power blade


• DS4700, DS4800, DS5100, DS5300

• FlashCopy or Volume Copy

• Full system only

DS4000/DS5000 Copy Services – Flash Copy

Fibre Channel

Fibre Channel

• DS4000/DS5000 FlashCopy and VolumeCopy

are supported by IBM as a client of VIOS on

both IBM Power servers and IBM Power blades

• Full-system FlashCopy and VolumeCopy

when the production IBM i logical partition

(LPAR) is powered off are supported


when the production IBM i LPAR is in restricted

state are supported

• The DS4000/DS5000 'disable' and 're-create'

functions with full-system FlashCopy and

VolumeCopy when the production IBM i LPAR is

powered off or is in restricted state are

supported

• Full-system FlashCopy and VolumeCopy of

the production IBM i logical partition (LPAR)

after only using the IBM i 6.1 memory flush to

disk (quiesce) function are not supported


when the production IBM i LPAR is running are

not supported

• FlashCopy and VolumeCopy of Independent

Auxiliary Storage Pools (IASPs) are not

supported

• Manual solution

• No toolkit available

• Not supported by PowerHA

See IBM i Virtualization and Open Storage Read-me First (Ch. 12) – http://www.ibm.com/systems/i/os/



IBM Power Systems

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• DS4700, DS4800, DS5100, DS5300

• Metro and Global Mirror

• Full system only

Fibre Channel

DS4000/DS5000 Copy Services – Replication

Fibre Channel

• PowerHA for IBM i (Geographic Mirroring,

specifically) is also supported and is lead-with

solution

• DS4000/DS5000 ERM is supported by IBM

as a client of VIOS on both IBM Power

servers and IBM Power blades

• Metro and Global Mirror are supported

• Metro and Global Mirror for planned failover

(IBM i production LPAR is powered off) are

supported

• Metro and Global Mirror for planned failover

(IBM i production LPAR is running) are

supported

• Replication of IASPs is not supported

• Suspending replication and accessing the

replicated LUNs on backup site is not

supported

• Manual solution

• No toolkit available

• Not supported by PowerHA

See IBM i Virtualization and Open Storage Read-me First (Ch. 12) – http://www.ibm.com/systems/i/os/

• Production LPAR on IBM Power

server or Power Blade


• Backup LPAR on IBM Power server or Power blade




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IBM Systems Lab Services Virtualization Program

What is it?– Free presales technical assistance from Lab Services

– Help with virtualization solutions:

Open storage

Power blades

IBM Systems Director VMControl

Other PowerVM technologies

– Design solution, hold Q&A session with client, verify hardware configuration

Who can use it?– IBMers, Business Partners, clients

How do I use it?– Contact Lab Services – Sandy Brow [email protected]

– Complete nomination form; send form in

– Participate in assessment call with Virtualization Program team

– Work with dedicated Lab Services technical resource to design solution


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Vouchers for Power Systems

Free postsales getting-started assistance from Lab Services

http://www.ibm.com/systems/power/hardware/vouchers/index.html

http://www.ibm.com/systems/power/hardware/vouchers/index.html


IBM Power Systems

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Documentation

Performance–Latest Performance Capabilities Reference manual, Chapter 14.5 –


–Disk Magic strongly recommended for sizing

Implementation and support statements– IBM i Virtualization and Open Storage Read-me First (2nd half) – http://www.ibm.com/systems/i/os/

Implementation– IBM i and Midrange External Storage Redbook

VIOS

–PowerVM Editions Guide: http://publib.boulder.ibm.com/infocenter/systems/scope/hw/index.jsp?topic=/arecu/arecukickoff.htm

–VIOS command line – http://publib.boulder.ibm.com/infocenter/systems/scope/hw/index.jsp?topic=/iphb1/iphb1_vios_commandslist.htm

–VIOS-only support statements – http://www14.software.ibm.com/webapp/set2/sas/f/vios/documentation/datasheet.html



http://publib.boulder.ibm.com/infocenter/systems/scope/hw/index.jsp?topic=/arecu/arecukickoff.htm

http://publib.boulder.ibm.com/infocenter/systems/scope/hw/index.jsp?topic=/iphb1/iphb1_vios_commandslist.htm

http://www14.software.ibm.com/webapp/set2/sas/f/vios/documentation/datasheet.html


IBM Power Systems

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IBM Power Systems

34

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Special notices


IBM Power Systems

35

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Special notices (cont.)

power of storage free webinar

Technology

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san ssd

gb ssd

new ssd

hot data hdd

disk hdd

ssd closer

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