Iasp Enablement

IBM STG Lab Services

®

Enabling Applications for Independent Disk Pools
commonly know as IASPs

© IBM Corporation 2009

IBM i

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

© 2009 IBM Corporation
IBM i Technology Center (iTC)

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

 Introduction to HA (HA Strategies & Planning for 2012 part 1 of 3) - Techtalk
 Introduction to IBM HA and DR Technologies (HA Strategies & Planning for 2012
part 2 of 3) – Recorded (in Techdocs)
 IBM Power HA Strategy – Techtalk (Feb 19)
 Technology Positioning (HA Strategies & Planning for 2012 part 3 of 3) – Techtalk (Feb24)

 IBM CBU Enhancements – Techtalk ( Feb 25th)

 IASP Enablement - Techtalk (Feb 26th)
 iCluster Enhancements – Techtalk (March 3rd)
 Sizing PowerHA - Techtalk (March 12th)
 Geographical Mirroring for Native IBM i applications - Recorded
 Geographical Mirroring for Hosted and VIOS environments - Recorded
 DS6000/DS8000 Copy Services HA Sizing and Considerations - Techtalk (March 19th(

 Look for email from “STG Sales Education & Events Newsletter” for Techtalk dates
 Techtalks: SmartZone for Power System Technical Training:
oIBM: http://lt.be.ibm.com/smartzone/powertech

oPartner: http://www.ibm.com/services/weblectures/smartzone/powertech



Notes: Upcoming Power System Tech Talks

Upcoming Power System Tech Talks

WEBCAST: IBM i HA/DR Technology Positioning – Feb. 24
ABSTRACT: In 1989, the AS/400 platform offered 1 replication technology to address HA and DR. In 2009, Power Systems IBM i offers no less than 6
unique replication and cluster technologies to choose from for native IBM i workloads, and 7 technologies to address virtualized Power Systems IBM i
environments. Our clients have many new choices, but do you know how to guide your clients to the best choice? Join the 'IBM i HA/DR Technology
Positioning' TechTalk to learn how to properly position these technologies, and walk away with a ready to use client presentation for these
engagements. To make the most of this Tech Talk, listen to the recorded session 'High Availability Strategies & Planning for 2012 - Part 2 of 3 -
Introduction to IBM HA and DR Technologies', available mid-February to Partners and IBMers in IBM's Techdocs library.
DATE: Feb. 24
TIME: 10:30 a.m. New York
DURATION: 90 minutes
TO PRE-REGISTER: IBMers and IBM Business Partners (no cost for webcast)
**Attention: You will only need to register one time for Adobe webcasts – where you will create a userid and password – please remember your userid
and password to attend upcoming Adobe webcasts. **
Confirmation: After completing your pre-registration for this webcast, you will receive an e-mail invitation that includes the URL to attend the webcast.
Please test your connection to ensure you are ready to attend this event by clicking on this URL:
https://admin.adobe.acrobat.com/common/help/en/support/meeting_test.htm

PRESENTATION FILE: The presentation file will be available to download during the presentation from the meeting URL. The file will also be posted
with the replay on SmartZone.
REPLAY: A replay will be available in SmartZone approximately 48 hours after the call.

SmartZone for Power System Technical Training:
IBM: http://lt.be.ibm.com/smartzone/powertech
Business Partners: http://www.ibm.com/services/weblectures/smartzone/powertech



Upcoming Power System Tech Talks, continues ….
WEBCAST: CBU Enhancements – Feb. 25
ABSTRACT: The CBU for IBM i has been an outstanding success and continues to grow in popularity. In this session we will briefly do an overview of the current
CBU offerings followed by a deeper look into the various aspects of the offering such as entitlement transfers and what you can and can't do with your CBU
environment. We also review IBM i license manager enhancements that, on one hand, block "out of compliance" messages for 520 and 525 users that have
fewer IBM i entitlements than processor activations but, on the other hand, may require special action to transfer entitlements to the equivalently configured CBU
servers. We will leave time for Q and A as well.









--------------------------------------------------------
WEBCAST: IASP Enablement – Feb. 26
ABSTRACT: So you heard that IASPs (Independent Disk Pools) are a key building block of IBM Availability Strategy. And oh, by the way, an
application has to be "IASP Enabled" for a PowerHA solution. What does that mean?
This session will:
1. Introduce IASPs
2. Overview the benefits
3. Overview the changes needed to make an application IASP enabled
4. Provide resource links to help you get started with your first PowerHA & IASP enabled application

DATE: Feb. 26
TIME: 10:30 a.m. New York, 3:30 p.m. London, 4:30 p.m. Paris, 11:30 p.m. China, 15:30:00 GMT








WEBCAST: iCluster Enhancements – Mar. 3

ABSTRACT: IBM iCluster for i V5.2 was released on Nov 14th 2008 and comes with a number of new enhancements including the fact that the product
is now a true IBM LPP (Licensed Program Product). This session will provide a brief review of the iCluster product, where it fits in with Power HA and
IBM technologies like MetroMirror/Global Mirror and Geographical Mirroring as well as pricing and what happened to the old iCluster SMB product. It
will then cover the new enhancements that were introduced at V5.2 of IBM iCluster. Attend this Tech Talk and learn about the latest and greatest and
where to go for more help in selling this logical replication solution from IBM.

DATE: Mar. 3








WEBCAST: Sizing PowerHA – Mar. 12

ABSTRACT: So you've sold the customer that PowerHA is a great fit with its simplicity of operations and gives them the confidence they can switch
over. Now what? This session provides sizing guidelines and considerations to enable your PowerHA implementation to be a success in a
Geographic Mirroring implementations of PowerHA.










WEBCAST: DS6000/DS8000 Copy Services HA Sizing Considerations – Mar. 19

ABSTRACT: So you've sold the customer that PowerHA as a great fit with its simplicity of operations and gives them the confidence they can switch
over as well as give them quick clones of their entire system so they can switch back quickly. Now what? This session provides sizing guidelines
and considerations to enable your PowerHA implementation to be a success in a Metro Mirror, Global Mirror or FlashCopy environment.







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 software
2. Switched IASP - Independent Auxiliary Storage Pool
3. IBM i Geographical Mirroring via OS
4. 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

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

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

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

Geographic Metro Mirror Global Mirror (SAN)* FlashCopy (SAN)*
Mirroring (SAN)* • SAN hardware • SAN hardware
• IBM i storage • SAN hardware replication replication
mgmt page level replication • Asynchronous • Point in time
replication • Synchronous • IBM SAN storage • IBM SAN storage
• Synchronous • IBM SAN storage only only
• Any internal or only
* This new support and capability added to IBM i and XSM with PowerHA and 6.1, IBM SAN Only
external storage
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

Basic ASP

System ASP

Independent ASP

IBM i

Independent ASP requires explicit “vary on”

System A
Vary On

System ASP

Independent ASP

IBM i

Switchable IASP lets you switch disk between two
systems

System A System B

System ASP

Independent ASP

IBM i

System A is the primary server

System A System B

Vary On

System ASP

Independent ASP

IBM i

A switch first requires a vary off of System A

System A System B

Vary Off

System ASP

Independent ASP

IBM i

Then System B can vary on the IASP

System A System B

Vary Off Vary On

System ASP

Independent ASP

IBM i

Admin Domains help you manage system objects
Username & password
System Values

System A System B

Vary Off Vary On

System ASP

Independent ASP

IBM i

Cross site mirroring provides additional redundancy

System IASP System
A B

System
Second IASP is IASP C
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

System i Navigator: Creating a Disk Pool

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

IBM i

Creating a Disk Pool

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

IBM i


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

IBM i


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


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.


IBM i


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


IBM i


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

IBM i


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.)

IBM i

Multiple Database Support – Setup Example

User profiles / Job Descriptions

*SYSBAS
i5/OS Contains Common Application Code
Licensed Programs
Work Mgt & User Definitions

IASPs MYCPY1 MYCPY2 MYCPY3

Database Database ASIA: Database US:
EUROPE: Catalog Catalog
Catalog Collections, Collections,
Collections, Libraries Libraries
Libraries


IBM i

Multiple Database Support – Setup Details
Initial Program:
User Profile Identifies DB libraries to
be worked with, uses
Initial Program SETASPGRP

Job Description

Job Description, per
IASP user(s): IASP #1 IASP #2 IASP #3
INLASPGRP
INLLIBL

IASP Definition

System Value Code Libraries in Libraries per IASP
QUSRLIBL: SYSBAS: DB:
PGMGLAPAR PGMGLAPAR DBGLAPAR
PGMOE PGMOE DBOE
PGMPROD PGMPROD DBPROD
PGMMISC PGMMISC DBMISC
... ... ...


IBM i

Name Space APPLE
*SYSBAS

Libraries
Libraries Barbara
An ASP group consists of a primary QSYS Mali
IASP and zero or more secondary QSYS2 Maria
IASPs linked to it, referenced by the QHLPSYS Suzanna
name of the primary. QUSRSYS
QGPL
Only one ASP group can be associated QTEMP
with a thread (job) at one time, so in Chuck ORANGE
this example, a thread could have a Laural
name space of: Selwyn Libraries
ƒ*SYSBAS only Fred
Barbara
ƒ*SYSBAS + APPLE Mali
ƒ*SYSBAS + ORANGE Maria
Suzanna


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 XML ( etc. )

mqm Access CA400 GUIPlugin HTTPA ( etc. )

Path to mqm = ‘/QIBM/UserData/mqm’

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) Network server descriptions for integrated network se
Ethernet line descriptions (*ETHLIN) Network server storage spaces (*NWSSTG)
Independent disk pools device descriptions (*ASPDEV)
Network server host adapter device descriptions (*NW
Optical device descriptions (*OPTDEV)
Job descriptions (*JOBD)
Subsystem descriptions (*SBSD)
Network attributes (*NETA)
System environment variables (*ENVVAR)
Network server configuration for connection
security (*NWSCFG)
System values (*SYSVAL)
Network server configuration for remote systems (*NWSCFG)
Tape device descriptions (*TAPDEV)
Network server configurations for service processors (*NWSCFG)
Token-ring line descriptions (*TRNLIN)
Network server descriptions for iSCSI connections (*NWSD)
TCP/IP attributes (*TCPA)
User profiles (*USRPRF


IBM i

IASP Library Management
IBM i commands have ASP parameter
 CRTLIB LIB(JIMCDLB1) ASP(*ASPDEV) Operations Navigator - IFS
ASPDEV(DLB1)
 WRKLIB/DSPLIB LIB(*ALL) ASPDEV(*ALLAVL ,
ASPname, *SYSBAS, *ASPGRP, ........)
 SAVLIB, RSTLIB, ...
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 Example:
_ QSYS200033 PROD DLB1 DSPLIB *ALL *ALLAVL
_ SYSIB00033 PROD DLB1
_ #LIBRARY PROD
_ #RPGLIB PROD


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 > ‘


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 ASP1 (SYSBAS)
 Independent ASPs (IASPs) *
–Uptime
► Shorter IPL – leave non-critical IASPs offline
till after IPL
► RCLSTG by asp
–Archive User ASP
► Storage performance and cost by IASP
–Consolidation
► Consolidatewith IASPs IASP – Application -1
- Meet compliance needs for isolation
- Reduce software licensing fees
- Reduce number of OS upgrades
–Clusters
► Building block for HA/DR
storage replication based IASP – Application -2
clustering

Reduce archive costs IASP – Journaling
with lower cost
storage in IASP

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


IBM i

IASPs in a Single System Environment

 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


IBM i

Isolating applications / Multiple versions
of application

*SYSBAS Archive Data
Mfg Data

Appl Z V1 Appl Z V2 Appl P Data Appl Q Data


IBM i

Building Blocks: IBM System Storage Copy Services
IBM External System Storage Copy Software DS8000
Time Copy

DS6000
Point In

For backups and snapshots

FlashCopy

For local
availability

Metro Mirror (synchronous)
Copy (continuous copy)
Peer To Peer Remote

For DR
Additional
copies for
Global Mirror (asynchronous) Consistency Group
remote backup,
queries, etc.

SAN = Storage Area Network

IBM i

Considerations for Migrating to an IASP-
Based HA Solution


IBM i

IASPs in a High Availability Environment
 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
replication on hardware-based Or
external storage replication
solutions for i Switched
 Remove risk of damaged Disk
system objects associated
with replicating entire system
 Faster switchover/failover
times
 Eliminate manual
reconfiguration necessary for
switchover/failover


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 ASP Group

 Objects not supported in  Permanent application data
IASP objects
 Exit programs, etc. that  Spool files (maybe)
must be found in *SYSBAS
 Journals & journal
 Operational version of job receivers
control objects (SBSD, etc)
 Definitional version of job
 Temporary objects control objects (SBSD, etc)
 System libraries  Application program
objects ?
 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

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

“i5/OS Quiesce”
ASP-1 IASP copy
ready for
Pinned backup use
pages
will
IASP IASP
remain
FlashCopy
Main Storage

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


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 5250 Interactive Application
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

www.systeminetwork.com
Business Continuity with External Storage-
Article ID: 20782 SAP Application


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

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

Consulting, Design, Skills Transfer, Implementation Services
Available:
 High Availability Services  High & Low Level Architecture Reviews
– IASP Feasibility study  Linux
– Improved Availability Assessment
– Remote Availability Assessment  WebSphere Application Server (WAS)
 Performance Review & Optimization  WebSphere Portal
 SOA Services
 HATS/Webfacing Services  Lotus Domino
 Copy Services for SAN System Storage  IBM Workplace
 Security Assessments
 Pre-coded & tested software components
 Voice over IP (VoIP) Services
 LPAR Toolkit, LPAR Design and  System i, System p, System z, System
Configuration Storage, System x, BladeCenter, Clustered
 System Migration Services Solutions
 Server Consolidation  Data Center Services

www.ibm.com/systems/services/labservices

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

Trademarks and Disclaimers
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The customer examples described are presented as illustrations of how those customers have used IBM products and the results they may have achieved. Actual
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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,
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