Iasp Enablement

IBM STG Lab Services

Enabling Applications for Independent Disk Pools

commonly know as IASPs

®

© IBM Corporation 2009

© 2009 IBM Corporation

IBM i

IBM i Technology Center (iTC)

Objectives

At the end of this session you should:

Understand Independent Auxiliary Storage Pool (IASP) concepts and value

Gain a perspective on customer usage scenarios for IASPs– High Availability solutions– Server Consolidation– Workload Isolation

Understand, at a high level, what application and work management changes are needed to exploit IASP technology

Identify other considerations related to common uses of IASPs

Learn what’s new for IASPs in IBM i 6.1

Know where to go for more information and detailed assistance


IBM i


1. 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 (Feb 19)

4. Technology Positioning (HA Strategies & Planning for 2012 part 3 of 3) – Techtalk (Feb24)

5. IBM CBU Enhancements – Techtalk ( Feb 25th)

1. IASP Enablement - Techtalk (Feb 26th)

2. iCluster Enhancements – Techtalk (March 3rd)

3. Sizing PowerHA - Techtalk (March 12th)

4. Geographical Mirroring for Native IBM i applications - Recorded

5. Geographical Mirroring for Hosted and VIOS environments - Recorded

6. DS6000/DS8000 Copy Services HA Sizing and Considerations - Techtalk (March 19th(

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

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


IBM i


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

– 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 Environments

– 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


IBM i


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)*


• Asynchronous


FlashCopy (SAN)*


• Point in time


IBM i 6.1 PowerHA

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


IBM i


IASPs (Independent Auxiliary Storage Pools)

IASPs - a building block of IBM i availability

Required for:► IBM PowerHA for IBM i (i 6.1)

- Geographic Mirroring - Advanced Copy Services for DS6000, DS8000

• FlashCopy, Metro Mirror and Global Mirror► IASP Data Encryption (i 6.1) ► Switched Disk ► IBM System Storage Copy Services Toolkit

IASP - an enabler for some server consolidations

IASP feasibility studies available

Enabling Applications for IASPs is usually easier than you think


IBM i


User ASP isolates disk for specific purposes

System ASP

User ASP


IBM i


User ASP evolved into two types: Basic ASP and Independent ASP

System ASP

Independent ASP

Basic ASP


IBM i


Independent ASP requires explicit “vary on”

System ASP

Independent ASP

System AVary On


IBM i


Switchable IASP lets you switch disk between two systems

System ASP

Independent ASP

System A System B


IBM i


System A is the primary server

System ASP

Independent ASP

System A System B

Vary On


IBM i


A switch first requires a vary off of System A

System ASP

Independent ASP

System A System B

Vary Off


IBM i


Then System B can vary on the IASP

System ASP

Independent ASP

System A System B

Vary Off Vary On


IBM i


Admin Domains help you manage system objects

System ASP

Independent ASP

System A System B

Vary Off Vary On

System ValuesUsername & password


IBM i


Cross site mirroring provides additional redundancy

IASPSystem A

IASPSystem

C

System B

Second IASP is

mirrored copy of first

active but not varied on

Second site can become the primary


IBM i


An Independent ASP is a method of configuring multiple disk storage units into one group. The group can be …

Non-switchable

Any or all units in the system tower, except the load source Any one or more disks anywhere on the system

Switchable

All disk units in a tower other than the system tower All the units in one tower A subset of the disk units in a tower Multiple IASPs in a tower Disk units from two or more I/O towers

Note: All contents of tower are switched.

Hardware replicated• Geographic/Cross site mirroring (XSM) V5R3, i 5.4• IBM System Storage Copy Services (FlashCopy, Metro Mirror,

Global Mirror) i5.4, i 6.1 • PowerHA for i (i 6.1)


IBM i


IBM i Storage Layout


IBM i


The IASP will be created on ITCHA4C. Expand its entry under "My Connections", then expand "Configuration and Service" and "Hardware."

System i Navigator: Creating a Disk Pool


IBM i


Expand "Disk Units." Sign on with a Service Tools profile authorized to work with disk units.

Creating a Disk Pool


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Click on "Disk Pools." Only the System ASP is present. Right-click on "Disk Pools", and select "New Disk Pool."



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The New Disk Pool wizard starts. Click "Next."



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IBM i




IBM i


To create a disk pool that can contain both library and IFS objects, select "Primary" for "Type of disk pool." Enter an arbitrary name for the disk pool, leaving "Database" as "Generated by the system". This will generate a database of the same name.



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The new disk pool is selected. Click "Next."



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Click "Add Disks..." to add from the list of eligible disk units.



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Click on the disk units to be added to the new disk pool (Ctrl-click for multiple disk units, Shift-click for a block of units.)



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*SYSBASi5/OSLicensed ProgramsWork Mgt & User Definitions

Contains Common Application Code

MYCPY1IASPs

Database EUROPE:

CatalogCollections,

Libraries

MYCPY2

Database ASIA:CatalogCollections,

Libraries

MYCPY3

Database US:CatalogCollections,

Libraries

User profiles / Job Descriptions

Multiple Database Support – Setup Example


IBM i


IASP Definition

Libraries per IASP DB:

DBGLAPARDBOEDBPRODDBMISC...

Code Libraries in SYSBAS:

PGMGLAPARPGMOEPGMPRODPGMMISC...

System Value QUSRLIBL:

PGMGLAPARPGMOEPGMPRODPGMMISC...

User Profile

Initial Program

Job Description

Job Description, per IASP user(s):

INLASPGRPINLLIBL

Initial Program:Identifies DB libraries to be worked with, uses SETASPGRP

IASP #1 IASP #2 IASP #3

Multiple Database Support – Setup Details


IBM i


LibrariesQSYSQSYS2QHLPSYSQUSRSYSQGPLQTEMPChuckLaural SelwynFred

*SYSBAS

LibrariesBarbaraMaliMariaSuzanna

LibrariesBarbaraMaliMariaSuzanna

ORANGE

APPLEName Space

An ASP group consists of a primary IASP and zero or more secondary IASPs linked to it, referenced by the name of the primary.

Only one ASP group can be associated with a thread (job) at one time, so in this example, a thread could have a name space of:

ƒ *SYSBAS onlyƒ *SYSBAS + APPLEƒ *SYSBAS + ORANGE


IBM i


Additional Characteristics of IASPs

Each ASP Group is represented as a separate DB2 database instance.

Duplicate library names are allowed within different ASP groups on the same system.

Each job or thread always has visibility to objects in ASPs 1-32 (System ASP + all Basic User ASPs), but is “attached” to, at most, one ASP group at a time.

Can be replicated or switched between multiple systems (requires additional software)


IBM i


IFS Directory Structure

/ (root)

QSYS.LIB QIBM APPLEn ( etc.)

locales ProdData UserData ( etc. )

mqm Access CA400 ( etc. )

Path to mqm = ‘/QIBM/UserData/mqm’

XML

GUIPlugin HTTPA


IBM i


IFS Objects in IASPs

IFS objects are accessed in an IASP by specifying the IASP directory name first in the path.

/ (root)

QSYS.LIB QIBM APPLEn ( etc.)

QIBM QSYS.LIB ( etc. )

Path to QIBM in APPLEn = ‘/APPLEn/QIBM’


IBM i


Supported Objects Types as of i 6.1

*ALRTBL *DTAQ *JRNRCV *PAGDFN *SPLF

*BLKSF *FCT *LIB *PAGSEG *SQLPKG

*BNDDIR *FIFO *LOCALE *PDG *SQLUDT

*CHRSF *FILE *MEDDFN *PGM *SRVPGM

*CHTFMT *FNTRSC *MENU *PNLGRP *STMF

*CLD *FNTTBL *MGTCOL *NODGRP *SVRSTG

*CLS *FORMDF *MODULE *PSFCFG *SYMLNK

*CMD *FTR *MSGF *QMFORM *TBL

*CRQD *GSS *MSGQ *QMQRY *USRIDX

*CSI *IGCDCT *NODGRP *QRYDFN *USRQ

*DIR *JOBD *NODL *SBSD *USRSPC

*DTAARA *JOBQ *OUTQ *SCHIDX *VLDL

*DTADCT *JRN *OVL *SPADCT *WSCST


IBM i


Unsupported Object Types as of i 6.1

*AUTHLR *DDIR *IMGCLG *NWSD

*AUTL *DEVD *IPXD *PRDAVL

*CFGL *DOC *JOBSCD *PRDDFN

*CNNL *DSTMF *LIND *PRDLOD

*COSD *EDTD *MODD *SOCKET

*CRG *EXITRG *M36 SSND

*CSPMAP *FLR *M36CFG *S36

*CSPTBL *IGCSRT *NTBD *RCT

*CTLD *IGCTBL *NWID *USRPRF


IBM i


Objects that can be Monitored with Admin Domain

Classes (*CLS)

Ethernet line descriptions (*ETHLIN)

Independent disk pools device descriptions (*ASPDEV)

Job descriptions (*JOBD)

Network attributes (*NETA)

Network server configuration for connection security (*NWSCFG)

Network server configuration for remote systems (*NWSCFG)

Network server configurations for service processors (*NWSCFG)

Network server descriptions for iSCSI connections (*NWSD)

Network server descriptions for integrated network servers (*NWSD)

Network server storage spaces (*NWSSTG)

Network server host adapter device descriptions (*NWSHDEV)

Optical device descriptions (*OPTDEV)

Subsystem descriptions (*SBSD)

System environment variables (*ENVVAR)

System values (*SYSVAL)

Tape device descriptions (*TAPDEV)

Token-ring line descriptions (*TRNLIN)TCP/IP attributes (*TCPA)

User profiles (*USRPRF


IBM i


Operations Navigator - IFS

Example: DSPLIB *ALL *ALLAVL

Display Libraries Libraries: *ALL ASP Opt Library Type Device _ DBLIB PROD DLB1 _ JIMCDLB1 PROD DLB1 _ QRCL00033 PROD DLB1 _ QRCY00033 PROD DLB1 _ QRPL00033 PROD DLB1 _ QSYS00033 PROD DLB1 _ QSYS200033 PROD DLB1 _ SYSIB00033 PROD DLB1 _ #LIBRARY PROD _ #RPGLIB PROD

IBM i commands have ASP parameter

CRTLIB LIB(JIMCDLB1) ASP(*ASPDEV) ASPDEV(DLB1)

WRKLIB/DSPLIB LIB(*ALL) ASPDEV(*ALLAVL , ASPname, *SYSBAS, *ASPGRP, ........)

SAVLIB, RSTLIB, ...

IASP Library Management


IBM i


IFS Objects in IASPs

IFS objects can be placed in an IASP using the rst (Restore Object) command, usually from a save file.

Restore Object (RST) Type choices, press Enter. Device . . . . . . . ‘/QSYS.LIB/QGPL.LIB/SAVF2.FILE’

Objects: Name . . . . . . . ‘ < path on save media > ‘ Include or omit . *INCLUDE New object name . ‘/APPLEn/ < path in IASP > ‘

Restore Object (RST) Type choices, press Enter. Device . . . . . . . ‘/QSYS.LIB/QGPL.LIB/SAVF2.FILE’

Objects: Name . . . . . . . ‘ < path on save media > ‘ Include or omit . *INCLUDE New object name . ‘/APPLEn/ < path in IASP > ‘


IBM i


Customer Usage Scenarios


IBM i


Why use IASPs?

Single System Environment – isolate and consolidate– Multiple Applications– Multiple versions of same application– Server consolidation– Data archive

Multiple System Environment– Fundamental building block of hardware and OS-based High

Availability and Disaster Recovery solutions– Off-line backups from replicated copy– Replicated copies for testing or development

Common (general)– Isolation of data associated with specific applications– Increased granularity of management scope


IBM i


Building Blocks: IBM i IASPs

IASP – Application -1

IASP – Application -2

IASP – JournalingReduce archive costswith lower cost storage in IASP

ASP1 (SYSBAS)

User ASP

* IBM sometimes refers to IASPs as Independent ‘Disk Pools’

Independent ASPs (IASPs) *–Uptime

► Shorter IPL – leave non-critical IASPs offline till after IPL

► RCLSTG by asp–Archive

► Storage performance and cost by IASP–Consolidation

► Consolidate with IASPs- Meet compliance needs for isolation- Reduce software licensing fees- Reduce number of OS upgrades

–Clusters► Building block for HA/DR

storage replication based clustering


IBM i


Can be any server that supports V5R3

Isolate low-use data - bring online only when needed

Reduce system start time Manage save/restore by IASP Reclaim storage by IASP Divide data between multiple

databases Isolate data

Isolate affects of disk failures

Application maintenance does not affect entire system

IASPs in a Single System Environment


IBM i


Isolating applications / Multiple versionsof application

*SYSBASMfg Data

Appl P Data

Archive Data

Appl Z V1 Appl Z V2 Appl Q Data


IBM i


DS6000

DS8000IBM External System Storage Copy Software

FlashCopy

For backups and snapshots

Poin

t In

Tim

e Co

py

Metro Mirror (synchronous)

For local availability

Peer

To

Peer

Rem

ote

Copy

(con

tinuo

us c

opy)

SAN = Storage Area Network

Global Mirror (asynchronous)

For DR

Consistency Group

Building Blocks: IBM System Storage Copy Services

Additional copies for remote backup, queries, etc.


IBM i


Considerations for Migrating to an IASP-Based HA Solution


IBM i


In addition to single-system benefits….

Facilitates hardware or OS-based replication solutions for HA, DR and off-line backups.

The only level of granularity available for IBM i switched disk and Geographic Mirroring HA solutions

The only level of granularity available besides full-system replication on hardware-based external storage replication solutions for i Remove risk of damaged

system objects associated with replicating entire system

Faster switchover/failover times

Eliminate manual reconfiguration necessary for switchover/failover

IASPs in a High Availability Environment

Replication

Or

Switched

Disk


IBM i


IASP HA Solution Considerations IBM’s HA solutions and technologies for i are continuing to

center around IASPs.

HA system/partition is available while in the “Contingency” role.– Is a unique system, not a complete replica of the source system– Unique instance of i operating system, LPPs, PTFs, etc– System is available, but IASPs replicated or shared from a

“primary” system are NOT available unless switching or failing to contingency system.

If using OS or Hardware Based replication of IASP, processes will need to be in place for synchronizing necessary SYSBAS objects and settings

May need changes to processes such as change management, user and security management, system monitoring, etc.


IBM i


How do you get there?

Common Changes and Application Considerations for IASPs


IBM i


Typical IASP Migration Project Outline Determine how IASPs fit into your HA/DR/Server Consolidation/Off-line backup

strategy.

Perform initial proof-of-concept on subset of applications.

Educate administration and programming staff on IASP enablement considerations.

Set up test environment where application and work management changes for IASP enablement will be performed and tested.

Devise plan for synchronizing SYSBAS between primary and secondary systems, if applicable.

Test all process, application and work management changes.

Determine production migration strategy based on available hardware and replication options.

Test migration process on sandbox environment, if possible

Perform any necessary education to support personnel and users on process change, etc.

Execute production migration and implement revised HA strategy based on IASPs, if applicable.


IBM i


IASP Enablement Considerations Most changes to support IASPs are typically work-

management oriented. IASP migration can generally be transparent to most end-users.

Location of application objects– data, journals, journal receivers– programs and environment definition objects– considerations for object types not supported in IASPs

Setup considerations– Loading of IASPs

Work management considerations– Name space, library list, job initiation, etc.

Application run time considerations– Database connectivity – DDM, JDBC, ODBC– Commitment control scope, join logical files

Additional considerations for multiple IASPs on a system


IBM i


Location of Application Objects

*SYSBAS

Objects not supported in IASP

Exit programs, etc. that must be found in *SYSBAS

Operational version of job control objects (SBSD, etc)

Temporary objects

System libraries

Application program objects ?

ASP Group

Permanent application data objects

Spool files (maybe)

Journals & journal receivers

Definitional version of job control objects (SBSD, etc)

Application program objects ?


IBM i


IASP Set-Up Considerations

Decide whether program objects will be in *SYSBAS or in IASP

Evaluate IFS directories and files to move to IASP– Create symbolic links in old *SYSBAS IFS location, pointing to

new location in IASP

Populating IASPs with data– Use ASPDEV since RSTLIB default will put objects in

*SYSBAS– Permanent SQL objects cannot span IASP boundaries– Cannot create files, tables, etc. into QSYS2nnnnn– Journal objects must be in same ASP group as objects being

journaled

Create new companion libraries for library content to be split between *SYSBAS and IASP

Modify startup program to vary on IASP


IBM i


IASP Work Management Considerations

Determine how application will access specific IASP (name space):

– Job descriptions INLASPGRP – most transparent to users

– SETASPGRP– SQL Connect, etc

Modify JOBDs for USRPRFs– Set initial ASP Group for user profiles associated with

the application

Library list processing

Evaluate SBSDs for changes or attachment to IASP– AJEs, PJEs, JOBQs, Routing programs


IBM i


IASP Database Considerations

Views, tables cannot span IASP boundary

– No join logicals over physicals in different ASPs or ASP and SYSBAS

Commit block cannot span IASP boundary

– If connected to IASP RDB, cannot commit changes against both IASP and *SYSBAS (except QTEMP)

Decide on RDB name for IASP

– Single IASP on system, may want to give the old *LOCAL RDB name to the IASP instead.

DDM files

– Configure to use *RDB for connectivity

New permanent libraries or collections for application:

– CRTLIB LIB(library-name) ASP(*ASPDEV) ASPDEV(asp-device-name)– Create collection – default for INASP is the current library name space

JDBC, ODBC, FTP connectivity

– Use JOBD of USRPRF to set INLASPGRP where possible


IBM i


IASP Application Considerations

Switching name spaces (SETASPGRP):– Typically avoid from within application– If use, release locks and pointer references first

IASP offline – if program objects remain in SYSBAS:– Application time out may need to increase for vary on processing– Application must handle object not available (as result of vary off,

etc.)

Evaluate use of SBMJOB and any commands with ASPDEV parameter to ensure desired behavior

Can use Vary on/off exit programs for IASP to perform application startup and shutdown processing


IBM i


New Function added in i6.1


IBM i


New i6.1 IASP Related Enhancements Support of job queues in IASP

– Allows applications to run with IASP with fewer changes– Job queue entries not persistant

Support for associating an IASP with a subsystem description– Parameter added to subsystem description object– IASP must be available for subsystem to be active

Quiesce function

– i Suspends transactions & operations to ensure that as much in-flight data as possible is written to disk

Support for pure SYSBAS transaction under commitment control

– Can open commit transactions against SYSBASE in a job with an IASP in the namespace

– Commit transactions still cannot cross SYSBASE/IASP boundaries

Avoiding IPL in previous cases where IASP could not be varied on

Encrypted IASPs

– 5761-SS1 Option 45 - Encrypted ASP Enablement required


IBM i


Support for Job Queues in IASP

Job queue object can be created in IASP– Allows applications to run with IASP with fewer changes

Operationally, identical to JOBQ in SYSBAS:– User can manipulate jobs (submit, hold, release, etc.) on JOBQ– User can manipulate JOBQ (clear, hold, release delete, etc.)

Behavioral differences exist:– Jobs on JOBQ in IASP will not persist across vary off / vary on– Jobs on JOBQ in IASP will not be available on backup system after

switchover or failover


IBM i


IASPFlashCopy

Quiesce Function Suspends transactions & operations to ensure that as much in-flight data as

possible is written to disk– Places transactions at database boundaries if possible

►Use commitment control for maximum effectiveness

Operates against individual IASPs or *SYSBAS

Useful prior to FlashCopy of SYSBAS, FlashCopy of IASP, detaching of mirror copy, switching of mirror copy

Command or API support– CHGASPACT *SUSPEND, *RESUME, *FRCWRT– QYASPCHGAA API – Change ASP Activity

Main Storage

Pinned pageswillremain

“i5/OS Quiesce”

Performing a FlashCopyhttp://publib.boulder.ibm.com/infocenter/systems/scope/i5os/index.jsp?topic=/rzaig/rzaigmanageiasp.htm

ASP-1

IASP

IASP copy ready for

backup use


IBM i


Encryption for ASP

Protects data transmission to and from the disk drive (important in a SAN environment).

Protects data transmission in the cross site mirroring environment (only when the data being mirrored is on an encrypted independent disk pool).

Protects data in the case of theft of the disk drive.

Protects data in the case of return or resale of a disk drive (reduces the need to sanitize the disk drive).

Must be specified at IASP creation time – cannot be applied to existing IASPs.

5761-SS1 Option 45 - Encrypted ASP Enablement required


IBM i


Cluster Administrative Domain Enhancements

New commands / interfaces– Start / end admin domain– Add / remove admin domain monitored resource entries– Display admin domain monitored resource entries via WRKCLU

i5.4 Monitored Resources enhanced in i6.1– User profiles (*USRPRF)– System values (*SYSVAL)

New Monitored Resources in i6.1– Subsystem Descriptions (*SBSD)– Network Server Descriptions (*NWSD) of types *WINDOWSNT,

*IXSVR, and *ISCSI– NWS Configurations (*NWSCFG)– NWSH Device Descriptions (*NWSHDEV)– NWS Storage Spaces (*NWSSTG)– Tape Device Descriptions (*TAPDEV)– Optical Device Descriptions (*OPTDEV)– Ethernet Line Descriptions (*ETHLIN)– Token-ring Line Descriptions (*TRNLIN)


IBM i


IASP Adoption in the Market


IBM i


Sample ISVs with announced IASP Support

Oracle – JD Edwards World and Enterprise One

SAP

Lawson M3

SPSS

Soft Landing

Vision Solutions

Manhattan

Many others have been implemented in clients


IBM i


Steps to Enable Oracle’s JD Edwards World A.73 in an IASP Environment

1) Create the IASP by indicating in iSeries Navigator the unconfigured disk drives that should be in the IASP.

2) Identify the JD Edwards application libraries to be moved into the IASP. Eg JDFDATA, JDFOBJ, JDFSRC, CLTCOM, CLTDTA, CTLSEC. JDFINS library was left in *SYSBAS because it contains JOBQ objects which weren’t supported in IASPs at time of publication of article.

3) Move the libraries to the IASP by saving the libraries to tape or Savefile(*SAVF), deleting them, and restoring them to the IASP by specifying the ASPDEV parameter on RSTLIB command.

4) Modify the JOBDs that JD Edwards uses to point to the IASP group created in step 1 eg CHGJOBD JOBD(<libname>/<jobdname>) INLASPGRP(<IASPname>) INLLIBL(QGPL, TEMP, rest of libraries)

http://www-03.ibm.com/support/techdocs/atsmastr.nsf/WebIndex/WP100811


IBM i


SAP Applications and iASPs

SAP has supported iASPs since V5R2 (2002)

SAP in Geographic Mirror whitepaper published (2004)

SAP iASP toolset rolled out and configuration improved (2005)

Direct install of SAP NetWeaver Applications into an iASP (2007)

Leveraging PowerHA for i in an SAP Environment whitepaper published (2008)


IBM i


Enabling SAP Applications for iASP

Separated iASP supported and non-iASP supported objects

Modified job descriptions, configuration files, and initialization programs

Modified SAP kernel to run in iASP – Code changes required to call ILE programs using IFS style convention

i.e. /IASP/QSYS.LIB/SAP.LIB/…

Developed lightweight install process for backup host

Configure SAP application to use virtual hosts

Configure exit programs to automate restart of SAP applications after switchover or failover

For more information see http://www.ibm.com/support/techdocs/atsmastr.nsf/WebIndex/WP101325


IBM i


Steps to implement PowerHA for i solution for Lawson M3

1. Use PowerHA for i Solution Based GUI to:– Pick the HA solution you want to implement– Create iASP(s) and setup the HA environment– Migrate Lawson M3 Business Engine and Life Cyle Manager

► User Profiles, IFS Directories, and Databases

2. Modify M3 Business Engine to run under iASP

3. Installing Lawson M3 WorkPlace Application into iASP– Includes installing WebSphere 6.1 into iASP– Modifying M3 WorkPlace to run under iASP

4. Create startup and shutdown exit programs

For more details see “Lawson M3 on IBM PowerHA for I” Whitepaper– http://www-03.ibm.com/support/techdocs/atsmastr.nsf/WebIndex/

WP101232


IBM i


Customer’s Using IASPs

Many, many successful IASP implementations world-wide– Most for HA solutions– Most have single ASP group per system / partition

Wide variety of industries and sizes– Major financial institutions world wide– Various international government holdings– Telecommunications corporations world wide– Major transportation and shipping companies– Infrastructure and facilities providers– ……. <insert your industry segment here> ……

IASP migrations can take days or months – depends on complexity of applications and environment


IBM i


External Storage Copy Services Network Requirements

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

Only IASP data is replicated

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

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

– 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


IBM i


References and Additional Material


IBM i


IASPs Resources Publications - www.redbooks.ibm.com

– iSeries Independent ASPs: A Guide to Moving Applications to IASPs – V5R3, SG24-6802-00– IASP Performance Study on the iSeries Server, REDP-3771-00– Clustering and IASPs for Higher Availability on the iSeries Server, SG24-5194-01

Websites– i5/OS HA website:

► Ibm.com/systems/i/ha

– InfoCenter► http://publib.boulder.ibm.com/infocenter/iseries/v5r4/index.jsp

Education & Workshops - http://www.ibm.com/servers/eserver/iseries/service/itc

– AS540 – IBM Power HA and IASP Implementation

– IASP for ISV Workshop

IBM Lab Services IASP Feasibility Studies.


IBM i


AS541 PowerHA & IASP Class Description AS541 PowerHA and IASP Enablement Rochester MN Cost $2500 per

student– Learn about PowerHA from a series of presentations and gain practical

experience through hands-on lab exercises. Learn to: ►Create disk pools (IASP) and place highly available objects into them ·►Use the methods that allow users to access information in a disk pool ►Manage an environment with multiple disk pools (server consolidation) ►Define an availability Environment using 5761-HAS IBM PowerHA►Compare and contrast the different options available for implementation under 5761-

HAS- Geographic Mirroring using IBM i IASP Mirroring Technologies- Metro Mirror using IBM System Storage Copy Services, IBM i IASP and

Clustering- Global Mirror using IBM System Storage Copy Services, IBM i IASP and

Clustering ►Create and manage an IBM i family cluster including problem determination ►Establish and manage an environment with continuously available application objects

using a geographic mirror disk pool ►Maintain consistent copies of key system objects like user profiles through operating

system cluster resource services ►Enroll at: http://ibm.com/services/learning search for AS54


IBM i


High Availability Services– IASP Feasibility study– Improved Availability Assessment– Remote Availability Assessment

Performance Review & Optimization SOA Services HATS/Webfacing Services Copy Services for SAN System Storage Security Assessments Voice over IP (VoIP) Services LPAR Toolkit, LPAR Design and

Configuration System Migration Services Server Consolidation

High & Low Level Architecture Reviews

Linux

WebSphere Application Server (WAS)

WebSphere Portal

Lotus Domino

IBM Workplace

Pre-coded & tested software components

System i, System p, System z, System Storage, System x, BladeCenter, Clustered Solutions

Data Center Services

www.ibm.com/systems/services/labservices

Consulting, Design, Skills Transfer, Implementation Services Available:

Resources: IBM Systems Lab ServicesHelping Clients to Design and Deploy IBM Systems and Storage Solutions


IBM i


What We’ve Learned Today

Independent Auxiliary Storage Pools are an Availability Building Block - A requirement for PowerHA

Each release brings enhancements to IASP

Help is available to help you access the changes needed to enable your application to IASP

It’s usually easier than you think to enable an application for IASP.


IBM i


Thank You !


IBM i


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