© 2009 IBM Corporation 1 Eric Hess, IBM 2008 IBM Power Systems - IBM i High Availability Strategies & Planning for 2012 Part 3 of 3 - Part 3 of 3 - HA.

© 2009 IBM Corporation

1Eric Hess, IBM 2008

IBM Power Systems - IBM i High Availability Strategies & Planning for 2012

Part 3 of 3 - Part 3 of 3 - HA and DR Technology Positioning

Eric HessIBM Power Systems, Advanced Technical Support - AmericasFebruary 2009



Part 1 of 3 - Introduction to High Availability and Disaster Recoveryo What are your availability requirements ?o IBM Power Systems IBM i availability solution

Part 2 of 3 - Introduction to IBM HA and DR Technologieso IBM Power Systems IBM i multi- server availability solutionso High availability and Disaster recoveryo What’s new in IBM Availability?

Part 3 of 3 - HA and DR Technology Positioning (this module):o HA and DR Technology Positioningo Availability with POWER6 and Virtualizationo Pulling it all together - next steps

Agenda - High Availability Strategies & Planning for 2012

The latest client-ready version of this presentation can be found in TechDocs: IBM Internal: w3.ibm.com/support/techdocs External: www-03.ibm.com/support/techdocs/atsmastr.nsf/Web/TechDocs (or ibm.com and search ‘techdocs’) Partners: PartnerWorld

In Techdocs, use the search word ‘Hess’ to find this presentation



Additional Events1. Introduction to HA (HA Strategies & Planning for 2012 part 1 of 3) - Techtalk

2. Introduction to IBM HA and DR Technologies (HA Strategies & Planning for 2012 part 2 of 3) – Recorded (in Techdocs)

3. IBM Power HA Strategy – Techtalk (Thursday Feb 19)

4. IBM CBU Enhancements – Techtalk

5. Technology Positioning (HA Strategies & Planning for 2012 part 3 of 3) - Techtalk

6. IASP Enablement - Techtalk

7. Sizing PowerHA - Techtalk

8. Geographical Mirroring for Native IBM i applications - Recorded

9. Geographical Mirroring for Hosted and VIOS environments - Recorded

10. DS6000/DS8000 Copy Services HA Sizing and Considerations - Techtalk

11. iCluster Enhancements - Techtalk

12. What’s New in IBM i Availability

* * * * * * * * This page for IBM and Business Partners Only * * * * * * * *

Speakers for these sessions include: Bob Gintowt, Dave Chorba, Selwyn Dickey, Steve Finnes, Fred Robinson, Chuck Stupca, Mike Warkentin, and other experts on availability solutions and planning

Techtalks: SmartZone for Power System Technical Training:oIBM: http://lt.be.ibm.com/smartzone/powertechoPartner: http://www.ibm.com/services/weblectures/smartzone/powertech

Look for email from “STG Sales Education & Events Newsletter” for Techtalk dates



Recap of Part 1 and Part 2

IBM offers a growing number of single system and multi-system availability solutions, including software, OS and storage based technologies

Assess your use of single server availability options

All sizes of businesses should assess their business resiliency requirements o Use methodologies such as Business Impact Analysis (BIA) to better understand

exposures and what should be done about them

IBM i and Power Systems offer 6 fundament technologies for business resiliency (native attached storage)

1. Logical Replication software2. Switched IASP - Independent Auxiliary Storage Pool 3. IBM i Geographical Mirroring via OS4. IBM System Storage LUN Level Switching 5. IBM System Storage Copy Services – simple copy 6. IBM System Storage Copy Services with IBM i

Some HA and DR technologies are unique to the IBM i Virtual Environmentso Understand how application HA / DR requirements interact with design efforts for a

virtualized solution environment

IBM i 6.1 in conjunction with PowerHA offers dramatic HA/DR enhancements



Power Systems IBM i Availability Solutions

IBM has a long time investment strategy to deliver advanced i5/OS and IBM i availability in order to meet varying client needs

1989

1999

2009

Logical Replication (Partner) Journaling Disk Mirroring and RAID-5 UPS

HABP Cluster Partnership OS/400 Clusters with

Logical Replication Remote Journaling Redundant power supplies Select concurrent

maintenance High speed, parallel tape

PowerHA for IBM i Independent Auxiliary Storage Pools IBM i Geographical Mirroring LUN Level Switching IBM Copy Services Integration* IBM iCluster (Logical Replication) Remote Journaling enhancements RAID5/6, Hot Spare, Disk Mirroring Dual power connections Increased server resiliency Concurrent node maintenance i 6.1 Quisece for backups Virtual tape IBM Lab Services for advanced

availability consulting Education/Services Vouchers

* IBM Storage DS6000 and DS8000



Technology Positioning

Multi-Server Availability Solutions



Common Planning Items and Costs

DB Journalingo Storage space and performance for any new journaling activity

HA Journal Performance, OS Option 42 (optional)o Can be required for any availability need if journaling has an impact on long

running workloads like nightly batch SMAPP – System Managed Access Path Protection

o Its use directly effects recovery time of all IASP and Storage copy based solutions

Efficient tape backup combinationso Save While Activeo High speed tapeo Concurrent or parallel tape designso i 6.1 Quiesceo FlashCopy

Second server or LPAR related hardware Related vendors technology education and services



PowerHA and IBM i Switched IASPs

5.3, 5.4 or - 6.1 PowerHA for i

LPAR-1

*SYSBAS

LPAR-2

*SYSBAS

Basic Switched IASPs between LPARs

Basic Switched IASPs between LPARso Redundant LPARs provide protection from

LPAR outage and some planned and unplanned outage requirements

o Single copy of disk cannot address disk outage or backups

o Combine with replication solutions

IASP

Switched IASP planning items:o Primary use is for switching

between LPARso POWER6 is last generation

to support HSL, avoid Switchable HSL towers between servers

o Is not supported by VIOS environments

o Some Single Points of Failure exist

o Server SPOFs – use all applicable single server availability options

o Storage - single copy of disk so use better disk protections schemes



Switched IASPs (1-2)

o No IPL required - vary on the IASP to an active server/LPAR o RTO: 5 minutes to 1 hour depending on design and practiceo RPO: Real time

o Native IBM i 5.4 & 6.1o IBM i 5.4 & 6.1

Hosted partitions for AIX, Linux and IBM i 6.1*

o Windows Integration

* (IBM i 6.1 host and client only)

o IASP basedo Basic, local High Availability – stand alone or foundation for other technologieso Management and automation provided by IBM clusters or PowerHA for i

Description:

o Local High Availability: Some RTO and RPO benefits when Journaling and SMAPP usedo Long distance Disaster Recovery: No, local LPAR solution onlyo Both local HA and remote DR: No, however, can be combined with replication o Planned outages: Some.o Online backups: No, may use Save-While-Activeo Workload balancing: No, since this is a single disk copy and cannot be shared

Business resiliency use:

Typical client environments:

o Small and medium SMB, and as a foundation in Large Enterprise

Availability and recovery characteristics:

Environments



Switched IASPs (2-2)

o Additional storage or I/O hardware (disk, drawer, 12x, etc.)o HA Switchable Resources – OS option 41 o PowerHA for i - 5761-HAS if 6.1o IASP proof of concept ( if required)

o Storage agnostic – works with any supported internal, external or combinationo Strategic foundation, allows addition of other replication technologies as neededo Simple architecture means robust switching and simple to operateo Application change management simplicity

Key advantages:

o LPAR only - not strategic between servers since POWER6 is last to support HSL/RIOo Storage and I/O properly designed for uptime and performance (system pool and IASP)o Single copy of data, does not offer concurrent access to data from other server or LPAR

Key considerations:

Typical planning and timelines:

o Identify application and data objects to be replicatedo Application(s) and data migration proof of concepto Storage I/O hardware planning and implementation as req.o 3-6 months from planning to implementation

Typical costs considerations:

Vendors and Resources

o Power team to lead architecture

o ATS and Techlineo Lab Services (fee)o Benchmark Centero GTS (fee)o IASP and PowerHA

Education



IBM i and System Storage LUN Level Switching

IASP

TargetSource

5.4 and 6.1 Toolkit

Production

*SYSBAS

HA

*SYSBAS

LUN Group (active)

LUN Group (none)

Switchable LUNs using native attached DS6000/DS8000 (LPAR or Server level)

o Server level redundancy offers protection from server or LPAR outage

o Add FlashCopy to address backup windowso Combine with continuous replication solution for

advanced HA or DRo Does not support VIOS

IBM i Switchable LUNs

DS8000LUN Level Switching planning items:

o Good DS6000 or DS8000 skills

o Proper DS6000 or DS8000 design for performance

o Proper IASP and *SYSBAS design

o Space Efficient FlashCopy assessment

o Multipath used for critical workloads

o Lab Services consulting engagement for design, any proof of concept requirements, and implementation

o IBM i 5.4 or i 6.1o SMART Fibre IOA helps

reduce costs

FlashCopy



LUN Level Switching(1-2)

o No IPL required - vary on (switch) IASP to an active server/LPAR o RTO: 5 minutes to 1 hour depending on design and practiceo RPO: Real time

o Native IBM i 5.4 & 6.1o IBM i 5.4 & 6.1

Hosted partitions for AIX, Linux and IBM i 6.1

o Windows Integrationo DS6000 and DS8000

o Function provided by IBM clusteringo Local High Availability – stand alone or combined with Switched IASPso Automation provided by IBM i clusterso Application change management simplicity

Description:

o Local High Availability: Yes, RTO and RPO benefits when Journaling and SMAPP usedo Long distance Disaster Recovery: No, side by side or campus distanceo Both local HA and remote DR: No.o Planned outages: Most.o Online backups: Yes, with FlashCopy or SWAo Workload balancing: No, since this is a single disk copy and cannot be shared



o Small and medium SMB, and foundation in Large Enterprise


Environments



LUN Level Switching(2-2)

o DS6000 or DS8000 costs over internal storage o Additional storage or I/O hardware (disk, HSL, 12x, etc.)o HA Switchable Resources – OS option 41 o IBM i Copy Services toolkit (Lab Services)o IASP proof of concept (if required)

o Cost effective, single image local HAo Simple architecture means robust switching and simple to operateo Application change management simplicityo Combines easily with DS6000 and DS8000 Copy Services and Toolkit

Key advantages:

o Storage and I/O properly designed for uptime and performance (system pool and IASP)o Requires additional copies, plus external storage costs versus internalo Not yet supported by PowerHA for i

Key considerations:


o Application(s) and data migration proof of concept or testo Server and DS Hardware planning and implementation as req.o 3-12 months from planning to implementation



o DS storage team to own DS pre-sales, Disk Magic, S.E. FlashCopy, etc.


o ATS and Techlineo Lab Services (fee)o Benchmark Center (fee)o GTS (fee)o IASP and System Storage

Education



PowerHA and XSM Geographic Mirroring

IBM i Geographic Mirroring

IASP

Target

5.3, 5.4, or 6.1 PowerHA for i

Tape Backup

IASP

Source

LPAR-1

*SYSBAS

LPAR-1

*SYSBAS

Geographic Mirroring planning items:

o Provide the extra CPU and memory required to support Geographic Mirroring environments

o Proper disk designo Design for Performanceo Avoid disk pool I/O sharing

o Two or more network connections for performance and reliability

o Improper LAN or WAN planning will create end user performance problems

o Separate network path for cluster management

o Assess network related performance impacts when exceeding campus distance

Geographic Mirroring Overview o IBM replication at virtual storage management layer for consistent

switchover

o Synchronous replication between servers

o Consistent replication of all data in IASP

o Administrative Domain (5.4 and 6.1) or Logical replication used to replication key system data

o Target can be used for backups to tape (6.1 preferred), if suspending replication is acceptable (RPO exposure consideration)



Geographic Mirroring (1-2)

o No IPL required - vary on (switch) IASP to an active server/LPAR o RTO: 5 minutes to 1 hour depending on design and practiceo RPO: real time, if journaling and SMAPP are used

o Native IBM i 5.4 & 6.1o IBM i Hosted

partitions for IBM io Windows Integrationo VIOS IBM i cliento VIOS-Blades IBM i

client

o OS based solution, integrated into IBM i 5.4 and i 6.1o Local High Availability (side by side or campus)o Use stand alone or combined with Switched IASP and FlashCopyo Automation provided by IBM clusters or PowerHA for i

Description:

o Local High Availability: Yes, RTO and RPO benefits when Journaling and SMAPP usedo Long distance Disaster Recovery: No, intended for campus or short city distanceo Both local HA and remote DR: Noo Planned outages: Some.o Online backups: Maybe, SWA on source, or suspend replication and use target copyo Workload balancing: No, since this is a single disk copy and cannot be shared



o Small and medium SMB, and basic needs in Large Enterprise


Environments



Geographic Mirroring (2-2)

o Additional storage or I/O hardware (disk, HSL, 12x, etc.)o HA Switchable Resources – OS option 41 o PowerHA for i - 5761-HAS if 6.1o WAN or LAN hardware for capacity and performanceo IASP proof of concept (if required)

o Storage agnostic – works with any supported internal, external, or virtual storageo Simple architecture means robust switching and simple to operateo Application change management simplicity

Key advantages:

o Synchronous replication technology limits distanceo CPU, Memory and Storage I/O must be designed to support Geographical Mirroringo Detaching target for backups suspends replication - no valid HA environment during

backup to tape and during the subsequent partial resynchronization.

Key considerations:


o Application(s) and data migration proof of concept or testo WAN - LAN Network design (redundancy, latency, bandwidth)o Hardware planning and implementation as req.o 3-12 months from planning to implementation




o ATS and Techlineo Lab Services (fee)o Network expertiseo Benchmark Center (fee)o GTS (fee)o IASP and PowerHA

Education



DS6000

DS8000Snapshots for backups, OS and application upgrade role-backs, BI and queries

Peer

To

Peer

Rem

ote

Copy

(con

tinuo

us c

opy) Metro Mirror (synchronous)

For local High Availability

Global Copy (asynchronous copy utility)

For data migration, or coupled with FlashCopy for DR

IBM System Storage Copy Services Software *

FlashCopy and Space Efficient FlashCopy

Poin

t In

Tim

e Co

py

Global Mirror (asynchronous)

Distance for HA or DR

Consistency Group

* Describes current native attached DS6000 or DS8000 functions. Not all System Storage copy services are available in an IBM i Virtualized environmentIncremental FlashCopy with Global Copy (point in time)

For point in time snapshots

at DR site

Com

bos



Full System Copy Services + Global MirrorDS8000

Local Site

DS8000

Global Mirror

DR

Full System

FlashCopy

FlashCopyCG

Production

Backups

LUN Level Switching planning items:




o Proper Network assessment and design


o Lab Services consulting engagement for design implementation

o IBM i 5.4 or i 6.1o SMARTIOA fiber helps

reduce costs

Full System Copy Services - GMo DS6000 or DS8000 (non-VIOS)o Asynchronous replication between storage serverso Consistent replication of all data in System ASP (ASP1)o Not a good HA solution - relies on IPL (boot) to access

copyo Requires target system configuration changes before

copy can be usedo Full system replication results in Crash Consistent copy

Note, Full System Metro Mirroralso an option, but not shown

Remote Site

5.4, or 6.1, Toolkit



Full System Copy Services + GM (1-2)

o IPL required – abnormal IPL likely - power off source to avoido RTO: 30 minutes to hours o RPO: seconds - minutes based on consistency group design and

network (Metro Mirror RPO = 0)

o Native IBM i 5.4 & 6.1

o IBM i Hostedpartitions

o Windows Integrationo Does not support

VIOS

o DS6000 and DS8000o Clone copy of system and ASPs (data, OS, program products, temp work areas, etc)o Function provided by SAN subsystem softwareo Automation can optionally be provide by Lab Services ‘Copy Services Toolkit’ offering

Description:

o Local High Availability: No. RPO and RPO benefits when Journaling and SMAPP usedo Long distance Disaster Recovery: Yes o Both local HA and remote DR: No, however, can be combined with replication o Planned outages: No.o Online backups: Yes, with FlashCopy and additional LPARo Workload balancing: Some, via offline point in time snapshots copies



o Medium SMB, and as for basic DR in Large Enterprise


Environments



Full System Copy Services + GM (2-2)

o DS6000 or DS8000 costs over internal storageo Extra copies of disk required for backups and Global Mirroro DS6000 or DS8000 Copy Services software o Lab Services Copy Services toolkito WAN or LAN hardware for capacity and performance

o Can meet moderate DR requirementso No object out of sync issueso Incorporates into cross platform storage DR solutionso Application change management simplicity

Key advantages:

o Unable to address planned outages (changes on target cannot be propagated to source)o Replicates temp data so it uses the largest amount of network capacity of all solutionso Requires additional copies, plus external storage costs versus internal

Key considerations:


o Server and DS Hardware planning and implementation as req.o WAN Network design (latency, bandwidth)o 3-12 months from planning to implementation



o Storage team to own pre-sales for Disk Magic, S.E. FlashCopy, network planning, etc.


o ATS and Techlineo Lab Services (fee)o Benchmark Center (fee)o GTS (fee)o IBM DS8000 Education



DS8000

DRand Test

IASP + Copy Services + Metro MirrorDS8000

Local Site

MetroMirror

Combination DS6000-DS8000 Copy Services cluster solution example

Production

*SYSBASIASP

FlashCopy

Backup

*SYSBAS

*SYSBASIASP

PowerHA or Copy Services Toolkit - MMo DS6000 or DS8000 (non-VIOS)o Synchronous replication between storage serverso Consistent replication of all data in System ASP (ASP1)o Advanced HA and Backup solution – no IPL required

o Combine with Switched LUNs, other Copy Services, 6.1 Quiesce , etc.

o Consistent replication of all data in IASPo Administrative Domain (5.4 and 6.1) or Logical replication

used to replication key system data

LUN Level Switching planning items:




o Proper Network assessment and design


o Lab Services consulting engagement for design implementation

o PowerHA for i or Toolkito IBM i 5.4 or i 6.1o SMARTIOA fiber helps

reduce costs

5.4, or 6.1, Toolkit, PowerHA



Production

*SYSBAS

HA

*SYSBAS

DS8000

LUN Group (active)

LUN Group (none)

Local Site

DS8000

IASP

Optional Golden

(D) Copy

Consistency Group

Global Mirror

DR Site

Production

*SYSBAS

IASP + Copy Services + Global Mirror + Combo

IASP

FlashCopy

Note: *SYSBAS disks are logical representations only, and may be disks located within the DS6000 or DS8000

PowerHA or Copy Services Toolkit Combinationo Global Mirror examples:

o DS6000 or DS8000 (non-VIOS)o Synchronous or asynchronous replication between storage serverso Advanced HA, DR and Backup solution

o Local Switched LUNs for HAo Local FlashCopy with 6.1 Quisce for nightly backupso Global Mirror for advanced DR across long distanceso Optional ‘D’ copy at remote site allows uninterrupted HA or DR test

o Many other combinations possible

5.4, or 6.1, Toolkit,

PowerHA



External Storage Copy Services Network Requirements

IASP based SAN copy solutions require less network bandwidth than full system SAN copy

o Only IASP data is replicated

o Examples show significant ongoing network cost savings using IASPs with asynchronous SAN copy services

o Previous experience suggests that a 300Mbs network between sites for full system replication can be reduced to 90Mbs by using IASPs

o IASP based cluster solutions provide the best RTO and RPO, with lower network costs

5250 Interactive Application

SAP Application

www.systeminetwork.comBusiness Continuity with External Storage-Article ID: 20782



IASP + Copy Services + MM or GM (1 of 2)

o No IPL required - vary on (switch) IASP to an active server/LPAR o RTO: 5 minutes to hour depending on design and practiceo RPO: Real time, if journaling and SMAPP are used

o Native IBM i 5.4 & 6.1

o IBM i Hostedpartitions

o Windows Integrationo Does not support

VIOS

o DS6000 and DS8000o Storage level replication function provided by SAN subsystem softwareo IASP based for more granular replication o Automation provided by PowerHA or Toolkit

Description:

o Local High Availability: Yes, RTO and RPO benefits when Journaling and SMAPP usedo Long distance Disaster Recovery: Yes.o Both local HA and remote DR: Yes, using combinationso Planned outages: Yes.o Online backups: Yes, with FlashCopy or Save-While-Activeo Workload balancing: Some, via offline point in time snapshots copies



o Medium SMB, Large Enterprise (usually too costly for small SMB)


Environments



IASP + Copy Services + MM or GM (2 of 2)

o DS6000 or DS8000 costs over internal storageo Extra copies of disk required for backups and Global Mirroro PowerHA for i and/or Copy Services software o Lab Services Copy Services toolkito WAN or LAN hardware for capacity and performance

o Can meet advanced HA, DR and backup requirementso Fully integrated into IBM i via PowerHA or Toolkit – unique to IBM storage solutionso No object out of sync issues, robust switching and simple to operateo Incorporates into cross platform storage DR solutionso Application change management simplicityo Large number of installation and extensive IBM experience and skills

Key advantages:

o Costs – GM requires additional copies, plus external storage costs versus internal issueso DS6000 or DS8000 skills as requiredo Move to IASPs

Key considerations:


o Application(s) and data migration proof of concept or testo Identify application and data objects to be replicatedo 6-18 months from planning to implementationo Storage I/O hardware planning and implementation as req.



o Storage team to own pre-sales for Disk Magic, S.E. FlashCopy, network planning, etc.


o ATS and Techlineo Lab Services (fee)o Benchmark Center (fee)o GTS (fee)o IASP, PowerHA and

Storage Education



Source Target

Logical Replication

Apply Process3rd party

software DB and Non-DB objects

ProductionData

Backup Copy

IBM i Remote Journaling

Management and Control

Typical Logical Replication Infrastructure

Logical Replication planning items:o Are skills are in place to plan,

implement, operate and maintaino Do not use ‘replicate everything’

design planning approacho Poor application change

management will cause out of sync issues

o For critical HA, limit use of target read-only copy

o High I/O queries can delay the apply process

o Add 3rd copy if neededo Understand backup requirements

o A target copy backup with SWA by itself does not replace the need to quiesce source server applications or users

Tape Backup

Logical Replication Overview o IBM Remote Journaling is used for replication of DB and

other object typeso Vendor unique logic provides replication for other objects

types or other DB needso Vendor provides management and controlo Target copy is available for read-only workloado Higher tier products can support broadcast replication to 2 or

more copies

5.4 or 6.1



Solution Comparisons: Logical Replication (1-2)

o No IPL required. Wait for apply process on B/U to complete. o RTO: 15 minutes to small hours depending on design, practiceo RPO: near real time to minutes based on date type, activity,

distance

o All environments, including VIOS

o Add-on vendor software – does not require any optional OS featureso Journal (logging) based replication and management (journaling required)o Replication by objecto Automation provided by ISV. Use of IBM base cluster in complex designs suggested

Description:

o Local High Availability: Yes, with RPO benefits from synchronous Remote Journalingo Long distance Disaster Recovery: Yes, via journaling or asynch Remote Journalingo Both local HA and remote DR: Yes, multiple copies via cascade or broadcast optionso Planned outages: Most.o Online backups: Yes, replication may continue, while apply process on B/U is haltedo Workload balancing: Some, via concurrent access and proper planning and controls



o Small SMB, medium SMB, and Large Enterprise


Environments



Solution Comparisons: Logical Replication (2-2)

o Vendor software and optionso Operations resource to monitor dailyo Proper network o Education and services for proper design and implementationo HA Journal Performance Option 42 might be needed

IBM iClustero www.ibm.com/systems/

power/software/availability

Vision Solutionso www.visionsolutions.com

Maximum Availability noMAXo www.maxava.com

Trader’s Quick-Eddo www.quick-software-

line.com

o Storage agnostic – works with any supported internal, external or combinationo Only solution to offer concurrent access to data on target o Able to support simultaneous replication to local HA and remote DR copies o Smaller network bandwidth required than other solutions

Key advantages:

o Tends to require more monitoring, operations and development team resourceso Target RPO can fall behind during write intensive batch jobs or during backups on targeto Some applications can be problematic in keeping data synchronized

Key considerations:

Typical planning and timelines:o Journal and vendor product planningo Identify application and data objects to be replicatedo 3-12 months from planning and implementationo Must be fully tested on a regular basis (e.g. 3-6 months)





Geographic Mirroring• IBM i storage

mgmt page level replication

• Synchronous• Any internal or

external storage

Cross Site Mirroring (XSM)“HA Switchable Resources” - option 41 – IBM i

Provides choices in design, implementation and management of IBM i 6.1 and SAN Storage IASP Cluster based replication technologies for HA and DR

* This new support and capability added to IBM i and XSM with PowerHA and 6.1, IBM SAN Only

PowerHA for i (5761-HAS)a.k.a HASM

Metro Mirror (SAN)*• SAN hardware

replication• Synchronous• IBM SAN storage

only

Global Mirror (SAN)*• SAN hardware

replication• Asynchronous• IBM SAN storage

only

FlashCopy (SAN)*• SAN hardware

replication• Point in time • IBM SAN storage

only

IBM i 6.1 PowerHA

See www.redbooks.ibm.com: Implementing PowerHA for IBM I - SG24-7405-00 (Nov 2008)



Copy Services toolkit with IBM i 6.1 PowerHA for i

Functions PowerHA for i Toolkit ( stand alone environment )

IBM i operating system product

(PowerHA LPP )

Yes No

Requires PowerHA LPP N/A Yes- via tool kit release which supports PowerHa

Cluster switch/failover Yes Yes

Start/Stop FlashCopy Yes Yes

Health check provided Yes Yes

Resets multipath for disk registration on switchover

Yes Yes

Automates cluster node starting for switchover/FlashCopy

No Yes

Supports IBM i5.4 No Yes

Automate queise function No Yes

Provides DS scripts for replication Yes Yes

Full System or non IBM i replication management

No Yes

Provides CL programming interface for IBM storage

No Yes

Eric Hess, IBM 2008



IBM i Availability Technologies

Virtualized Environments



HA and DR Technologies for IBM i Virtual Environments

VIOS (hosting IBM i partition) - Power servers and IBM Power bladeso IBM and ISV Logical Replication o IBM i XSM Geographical Mirroring (PowerHA) with DS4000 or SVCo IBM Storage Copy Services (full copy, manual process only)

o DS4000 Point in time copy: FlashCopy or Volume Copy o DS4000 Continuous copy: Synchronous Enhanced Remote Mirroring (Metro Mirror)o SVC Copy Services (SAN Volume Controller)

Noteso PowerHA for i does not support copy services of DS4000 or SVCo Lab Services ‘Copy Services Toolkit’ does not support copy services of DS4000 or SVCo Full-system FlashCopy and VolumeCopy requires that the production IBM i logical partitiono (LPAR) be powered off or in a restricted stateo New 6.1 ‘Quiesce’ function not supported with DS4000 or SVC copy serviceso See planning documentation for other planning items and restrictions

IBM i and Midrange External Storage• www.redbooks.ibm.com/abstracts/sg247668.html?Open

• IBM i Virtualization and DS4000 Read-me First (October 20th, 2008)• www-03.ibm.com/systems/resources/systems_i_os_i_virtualization_and_ds4000_readme.pdf



Choosing a Solution

Summary



Generalizations (e.g. categorizing into major problem sets) can distort the answer

Should use as a guide to potentially rule out certain solution types

In practice, consider all major and supporting decision factors such as:

o Up time requirements

o Recovery time objective

o Recovery point objective

o Resilience requirements

o Concurrent access requirements

o Geographic dispersion requirements

o Tolerance for end user disruption

o Outage type coverage

o Experience, skills and resources

o Cost and budget

o Service and support

Selection Criteria

i5/OS High Availability Clusters:Data Resilience Solutions

Document Version 1.0Version date: October 22, 2004Authors:Steven J FinnesRobert T GintowtMichael J Snyder© Copyright IBM Corporation 2004. All rights reserved.

i5/OS High Availability Clusters:Data Resilience Solutions

Document Version 1.0Version date: October 22, 2004Authors:Steven J FinnesRobert T GintowtMichael J Snyder© Copyright IBM Corporation 2004. All rights reserved.

See Redpaper redp0888: www.redbooks.ibm.com



Additional Events1. Introduction to HA (HA Strategies & Planning for 2012 part 1 of 3) - Techtalk

2. Introduction to IBM HA and DR Technologies (HA Strategies & Planning for 2012 part 2 of 3) – Recorded (in Techdocs)

3. IBM Power HA Strategy – Techtalk (Thursday Feb 19)

4. IBM CBU Enhancements – Techtalk

5. Technology Positioning (HA Strategies & Planning for 2012 part 3 of 3) - Techtalk

6. IASP Enablement - Techtalk

7. Sizing PowerHA - Techtalk

8. Geographical Mirroring for Native IBM i applications - Recorded

9. Geographical Mirroring for Hosted and VIOS environments - Recorded

10. DS6000/DS8000 Copy Services HA Sizing and Considerations - Techtalk

11. iCluster Enhancements - Techtalk

12. What’s New in IBM i Availability

* * * * * * * * This page for IBM and Business Partners Only * * * * * * * *

Speakers for these sessions include: Bob Gintowt, Dave Chorba, Selwyn Dickey, Steve Finnes, Fred Robinson, Chuck Stupca, Mike Warkentin, and other experts on availability solutions and planning

Techtalks: SmartZone for Power System Technical Training:oIBM: http://lt.be.ibm.com/smartzone/powertechoPartner: http://www.ibm.com/services/weblectures/smartzone/powertech

Look for email from “STG Sales Education & Events Newsletter” for Techtalk dates



Eric Hess, [email protected]

IBM 2009 Technical Sales Support Americas

Thank YouIBM i High Availability Strategies & Planning for 2012

Part 3 of 3



Copyright IBM Corporation 1994-2009. All rights reserved.References in this document to IBM products or services do not imply that IBM intends to make them available in every country.Trademarks of International Business Machines Corporation in the United States, other countries, or both can be found on the World Wide Web at http://www.ibm.com/legal/copytrade.shtml.

Intel, Intel logo, Intel Inside, Intel Inside logo, Intel Centrino, Intel Centrino logo, Celeron, Intel Xeon, Intel SpeedStep, Itanium, and Pentium are trademarks or registeredtrademarks of Intel Corporation or its subsidiaries in the United States and other countries.Linux is a registered trademark of Linus Torvalds in the United States, other countries, or both.Microsoft, Windows, Windows NT, and the Windows logo are trademarks of Microsoft Corporation in the United States, other countries, or both.UNIX is a registered trademark of The Open Group in the United States and other countries.Java and all Java-based trademarks are trademarks of Sun Microsystems, Inc. in the United States, other countries, or both.Other company, product, or service names may be trademarks or service marks of others.

Information is provided "AS IS" without warranty of any kind.

The customer examples described are presented as illustrations of how those customers have used IBM products and the results they may have achieved. Actual environmental costs and performance characteristics may vary by customer.

Information concerning non-IBM products was obtained from a supplier of these products, published announcement material, or other publicly available sources and does not constitute an endorsement of such products by IBM. Sources for non-IBM list prices and performance numbers are taken from publicly available information, including vendor announcements and vendor worldwide homepages. IBM has not tested these products and cannot confirm the accuracy of performance, capability, or any other claims related to non-IBM products. Questions on the capability of non-IBM products should be addressed to the supplier of those products.

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

Some information addresses anticipated future capabilities. Such information is not intended as a definitive statement of a commitment to specific levels of performance, function or delivery schedules with respect to any future products. Such commitments are only made in IBM product announcements. The information is presented here to communicate IBM's current investment and development activities as a good faith effort to help with our customers' future planning.

Performance is based on measurements and projections using standard IBM benchmarks in a controlled environment. The actual throughput or performance that any user will experience will vary depending upon considerations such as the amount of multiprogramming in the user's job stream, the I/O configuration, the storage configuration, and the workload processed. Therefore, no assurance can be given that an individual user will achieve throughput or performance improvements equivalent to the ratios stated here.

Photographs shown may be engineering prototypes. Changes may be incorporated in production models.

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© 2009 IBM Corporation 1 Eric Hess, IBM 2008 IBM Power Systems - IBM i High Availability Strategies & Planning for 2012 Part 3 of 3 - Part 3 of 3 - HA.

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