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IBM i Availability Update

Allyn Walsh

Power Strategic Initiatives Team

[email protected]


Agenda

Availability Enhancements

– Scheduled downtime

– Backups and Maintenance

– Unscheduled downtime

– Recovery

Single points of failure

High Availability Solutions


Availability Strategy

Balanced

Systems

Growth

Eliminate System

Outages

Reduce Frequency &

Duration of Outages

HA Clustering

Solutions



Scheduled downtime

Backups

Save Performance

Online Backups

Usability/Automation

Maintenance

PTFs

OS Upgrades

Hardware / firmware

Unscheduled downtime

Recovery time

Abnormal IPL

Transactions up to point

of failure

Restoring lost or

corrupted data


Processor & Memory

Power & Service Proc

DASD

Other I/O

High availability

solutions

Support for Key

Environments

Usability

Currency, Standards,

Compliance


Scheduled downtime: Backups

Save Performance

Performance increase with each generation of tape hardware technologies

– Couple with multiple concurrent or parallel backups for maximum throughput

7.2 Faster IFS save times using SAV command with new ASYNCBRING parameter

– Up to 60% faster save times in some cases (depends on directory structure,

number/size of objects, and other factors – Note: performance could degrade in

some situations)

– To enable ASYNCBRING in 6.1 or 7.1, see IBM Technote N1011242:

• http://www-01.ibm.com/support/docview.wss?uid=nas8N1011242

– See BRMS developerWorks wiki for BRMS support information:

• IBM Backup, Recovery and Media Services (BRMS) for i >‎Backup >‎Backup of

integrated file system objects >‎Specifying ASYNCBRING for IFS backups


http://www-03.ibm.com/systems/power/software/i/management/performance/resources.html

Updated April 2016


BRMS command - PRTRPTBRM *CTLGRPSTAT

• Excellent for:

• Monitoring / Analyzing ongoing Backup Performance

• Sizing New Tape / ProtecTIER Environments

• See BRMS developerWorks Wiki for BRMS support information

• IBM Backup, Recovery and Media Services (BRMS) for i >‎Backup >‎Save Items >‎Backup control

group status – PRTRPTBRM

• https://ibm.biz/BdF6rr

• Additional enhancements – as of 3/2016 BRMS PTFs

• http://ibmurl.hursley.ibm.com/NPMJ

• Multiple values on the From system (FROMSYS) parameter (centralized reporting)

• TSM (USEADSM) parameter

• Use save files (USESAVF) parameter



Online “point in time” backups

6.1 Save-While-Active (SWA) synchronized across libraries and IFS objects

– Single checkpoint to ensure library and IFS data saved in consistent state

– STRSAVSYNC command in 6.1

Full System Copy Services Manager (FSCS) from IBM STG Lab Services

– Enables automated, full system backup without ending user jobs

– Supports SVC/V7000, DS8000 and XIV external storage

– See Full System Copy Services Manager section of IBM i Advanced Copy

Services developerWorks Wiki

• http://ibmurl.hursley.ibm.com/NP77

Save IASP mirror copy (FlashCopy or detached geographic mirror)

– For PowerHA environments

– FlashCopy with ICSM (IASP Copy Services Manager) from IBM STG Lab Services

enables‎ automatically‎ creating‎ “point‎ in‎time”‎copies‎of‎an‎IASP‎on‎DS8000‎or‎

SVC/V7000/V3700.

– See ICSM - FlashCopy section of IBM i Advanced Copy Services developerWorks

Wiki


FlashCopy overview

FlashCopy is a point-in-time-copy of external storage logical volumes that can be established very quickly and with minimal or no disruption or resource on the production LPAR

IASP based or Full System solution

FlashCopy options – full copy, no copy

Space Efficient FlashCopy volumes can reduce FlashCopy storage by 70-80%

Use with 6.1 Quiesce to eliminate IASP vary off or LPAR shut down, journal for object and data integrity of flashcopy

Automate with IASP Copy Services Manager for PowerHA on i or with Full System Copy Services Manager" (FSCS) from IBM STG Lab Services

Integration with BRMS

Ideal for off-line backup solutions

DS8000, SVC, Storwize, V840/V9000

Prod LPAR

*SYSBAS

IASP

LPAR-2

(backup)

*SYSBASTape Backup

IASP

FlashCopy


PowerHA FlashCopy options

• IBM i can leverage FlashCopy to:

Create a copy of an IASP for backup

Create a full system copy for backup

• Recommendation is:

• Vary off the IASP or power down the system before taking the Flash

• Known as a “cold Flash” is the best way to guarantee complete data integrity

• IBM i 6.1 added support for the “Quiesce” of IASP

• Known as a “warm Flash”

• suspends transactions & operations to ensure that as much in-flight data as possible is

written to disk

• Places transactions at database boundaries if possible

Best when used with applications running commitment control

• Requires a ‘recovery vary-on’ of the IASP.

• 7.1 and later supports Quiesce with VIOS storage pools


www.ibm.com/systems/services/labservices

What is Full System FlashCopy?

• A set of tools provided by IBM PowerHA Lab Services for years

• Originally marketed as Full System FlashCopy Toolkit (FSFC Toolkit)

• Rebranded in 2014 as Full System Copy Services Manager (FSCSM)

• Rebranded in 2016 as a feature under Full System Manager

• Full System FlashCopy (FSFC)

• Leverages FlashCopy features on IBM storage subystems

• Presents a full system “copy”‎of a production system (LIC and O/S)

to another set of hardware resources

• Intended to be a BACKUP SOLUTION

• Automates the end-to-end processes required to achieve a full

system backup of production system(s)


Who are the target customers for Full System FlashCopy?

• Customers unable (or un-willing) to implement PowerHA requirement for

independent auxiliary storage pools (IASPs) for any reason

• Time constraints

• Resource limitations

• Budgetary restraints

• Application-specific technical obstacles

• Customers with limited down-time windows on production systems

• Customers desiring easier recovery options for full system outages

• Customers needing alternative options to software-based strategies

• Stopping replication, allowing changes to catch up, performing backups primarily

on application data only, resuming replication

• Customers‎wanting‎a‎temporary‎production‎“test”‎environment‎to‎use‎until‎the‎

next backup is performed

Most

common

reason


Features and Benefits of Full System FlashCopy

• Provides full system backup of production partition with minimal (or no)

interruption to production workload

• Provides better RPO of full system data (more frequent backups)

• Simplifies recovery process with full system backup on one (or few)

tape(s)

• Supported with wide variety of IBM external storage

• DS8000 Family

• Spectrum/Storwize (SVC-based) - V3700, V5000, V7000, V9000, Flash

Systems

• XIV

• Can manage multiple environments from one “controlling”‎partition

• Automates end-to-end process via single command

• Easy, centralized management of many steps on many systems

• Extensive logging for time-tracking and error resolution

• Integrates well with BRMS environments (but not required)



Backup Usability/Automation

7.1 and 7.2 BRMS enhancements

– Improved functions for managing backups, media, backup history, and recoveries

• See News section of BRMS developerWorks Wiki

http://ibmurl.hursley.ibm.com/2KIS

7.1 BRMS Enterprise Function

– Monitor backup operations for all your BRMS systems from a central site

– Provides common spot for recovery reports, dashboard for all systems, ability to get status on a control group run... all from a central hub.

– 7.2 enhancements (not PTFed back to IBM i 7.1)

• Auto‎refresh‎of‎Hub’s‎node‎status‎(dashboard)‎via‎ new‎Q1ABRMENT‎subsystem

• PRTRPTBRM support

• Failed Control Group View to debug problems faster

– See BRMS Enterprise section of BRMS developerWorks Wiki for details

• https://ibm.biz/BdDYg5

– See BRMS Enterprise Enhancements Redpaper

• http://www.redbooks.ibm.com/redpieces/abstracts/redp4926.html


Enterprise

IBM Navigator for i enhancements

Backup enhancements (see next page)

Recovery enhancements

Media services enhancements

BRMS network enhancements

Install enhancements

Maintenance enhancements

Miscellaneous enhancements

http://ibmurl.hursley.ibm.com/NPML




7.2 Select (SELECT) parameter on SAVLIB/SAVOBJ commands to refine which objects to include or omit

7.2 Spooled files can now be saved with the Save Changed Objects (SAVCHGOBJ) command

7.2 TCP/IP configuration information automatically saved with QUSRSYS

7.1 Removed limit that prevented saving database files with more than 16 MB of descriptive information

– NOTE: Find all the system limit changes for any OS version in the IBM i Knowledge Center

NOTE:

Save Storage (SAVSTG) command no longer available on 7.2




Tape Virtualization (address tape errors and tape handling

issues)

– IBM i virtual tape outstanding large file save performance

– IBM TS7600 ProtecTIER® Deduplication Family great for

remote replication


OhioProtecTIE

R

IBM i

Local Saves to

Virtual Tape with

De-dup

IBM i ProtecTIE

R

New York

IP Replication

Minimized bandwidth

since data is de-dup’d‎

before sending

TS3500

Optional

duplication

to physical

tape

(at local or

remote

site)

Disk

Virtual

Tapes C

A

B

C

A

AB

B

A

What is

DeDuplication?

C

A

B

C

A

AB

B

A C

A

B

C

A B

B

A

A

What does ProtecTIER do?


Where does ProtecTIER fit?– Generally and on IBM i

Small‎Servers‎can’t‎ optimize‎a‎tape‎drive

Offsite Shipments are Costly and a BotherTapes are Hard to Manage

Writing Waiting Waiting Waiting

Small‎Backups‎don’t‎fill‎a‎tape

Virtual tape can provide

multiple virtual drives Virtual tape can make virtual

volumes of any size

Virtual

tape keeps

all the

volumes

inside the

device

Virtual

tape can

transmit

them to a

remote siteVery Interesting for

IBM i Customers

Nice with VIOS

for IBM i


Backups: Best practices / technologies

High Speed tapes – upgrade to latest generation for maximum performance

Multiple tapes – when a single fast tape drive is not enough

– Concurrent saves and/or Parallel saves

Real time backups of active data – when users won’t give it up

– Save-While-Active (SWA)

– Saving journal receivers – complex and slow recovery, but cheap

Off-line backups from a point-in-time copy – move it off to tape at your leisure

– Snapshots (for example, FlashCopy with DS8000, SVC, V7000, V3700)

– Logical replication read-only access of target copy

Automation – because humans cannot keep up with all of the options

– BRMS – Backup Recovery and Media Services – does it all, including FlashCopy

– IBM STG Lab Services tools (IASP or Full System Copy Services Manager)

Tape Virtualization – address tape errors and tape handling issues

– IBM i virtual tape

– IBM TS7600 ProtecTIER® Deduplication Family



Scheduled downtime

Backups

Save performance

Online backups


Maintenance

PTFs

OS Upgrades

Hardware / firmware


Recovery time

Abnormal IPL


of failure

Restoring lost or

corrupted data


Processor & Memory


DASD

Other I/O

High availability

solutions

Support for key

environments

Usability


Compliance


Scheduled downtime: PTFs 7.2 More immediate apply PTF opportunities

• Conditional Immediate PTFs

• Allows an immediate apply PTF which supersedes a delayed PTF to be Immediate applied if the superseded PTF has already been applied

• Prior to 7.2, Immediate PTFs cannot supersede delayed PTFs

– Once delayed PTF created, snowball effect triggered since all future superseding PTFs must be delayed even if the changes in the PTF could be applied immediately

7.1/7.2 Display PTF Apply Information (DSPPTFAPYI) command

(7.1 requires PTF SI52034 included in TR8)

• Shows whether selected PTFs can be applied immediately

• PTF save files and PTF groups must exist in or be copied into *SERVICE before running command

6.1/7.1/7.2 PTF apply time improvements

• Improvements to Long Running PTF apply exit programs

• Improvements to LIC PTF apply (benefits smaller partitions/systems)

• Automatic double IPL for PTFs requiring extra IPL for installation

6.1 Networked virtual optical for OS upgrades, PTF install, or LP install


Scheduled downtime: OS upgrades

Technology Refreshes (7.1 and beyond)

– Semi-annual technology refreshes provide new functions and I/O support

– Simpler to install on a current release and less disruptive (PTF apply vs. OS upgrade)

– Allows many years between disruptive major OS upgrades

Independent ASPs / PowerHA

– Upgrade target LPAR to new release without disruption to production

– Vary off IASP from old release, vary on IASP to new release (minimum disruption/outage)

FlashCopy

– Eliminate downtime for pre/post-upgrade backups

– Create cloned image to test upgrade process, calculate timings (repeatable over and over)

– Create cloned image for rapid back-out if upgrade process fails / takes too long

Central site distribution media (“DLO media”)

– Saves time/steps in the upgrade process

– See‎“Distributing software using central site distribution”‎topic‎in‎the‎Knowledge‎Center‎

http://www-01.ibm.com/support/knowledgecenter/ssw_ibm_i_71/rzai4/rzai4centsitedist.htm

Image catalog and network install using virtual optical storage & NFS

– Eliminates need to handle physical media during install process

– See‎“Preparing to upgrade or replace software with virtual optical storage using the Network File System”‎topic‎in‎the‎Knowledge‎Center

http://www-01.ibm.com/support/knowledgecenter/ssw_ibm_i_71/rzahc/rzahcpreparingtoupgradevirtoptnfs.htm

Install time improvements with faster POWER processors


Scheduled downtime: Hardware maintenance

Concurrent repair of fans/power supplies

Concurrent repair of PCIe adapters

Concurrent repair of disks configured for redundancy

7.1 Concurrent disk move/remove

POWER6/7 hot-add HSL-2 and 12X I/O loop adapters

POWER8 hot-pluggable optical modules for I/O drawer attachment

Concurrent system firmware updates (between releases)

7.1 TR4 Live Partition Mobility

– Migrate running workloads between systems to enable continuous availability during

planned server hardware maintenance / outages

– Combine with Power Enterprise Pools with Mobile and Elastic COD for maximum

flexibility and economic efficiency


7.1 Concurrent disk move/remove

Concurrent Remove of Disk Units

– Logically remove disk unit(s) without having to IPL or take an outage (physical remove requires IPL to clean-up hardware resources)

– Does not require restricted state

– Can be paused and restarted

POWER5 and up, with 7.1

Work with Removing Units From Configuration

Select one of the following:

1. Display disk configuration 2. Display status of remove operation 3. Remove units from configuration 4. Pause the remove operation 5. Resume the remove operation 6. Cancel the remove operation 7. Cancel the remove operation and balance data in the ASP

2

Serial Resource Number Type Model Name Capacity Status YL4RUT3ERVR7 6B22 050 DD006 37287 Non-configured

4

Size %Used Status 195754 33.56% Unprotected 55924 40.77% Configured 18643 40.78% Configured 23308 40.78% Configured 27965 40.77% Configured 32623 40.77% Configured 37287 2.88% Removing

3

See section 8 in: IBM i 7.1 Technical Overview, SG24-7858

http://www.redbooks.ibm.com/redpieces/abstracts/sg247858.html?Open

Work with Disk Configuration

Select one of the following:

1. Display disk configuration 2. Add units to ASPs 3. Work with ASP threshold - . . .- . . . 10. Stop hot spare 11. Work with encryption 12. Work with removing units from configuration

1


Live Partition Mobility requires the purchase of the optional PowerVM Enterprise Edition

Rebalance processing

power across servers when

and where you need it

Reduce planned downtime by

moving workloads to another server

during system maintenance

Movement to a

different server

with no loss of

service

Virtualized SAN and Network InfrastructureVirtualized SAN and Network Infrastructure

Move a running partition from one Power7/8

server to another with no application downtime

Live partition mobility


Partition mobility: Active and Inactive LPARs

Active Partition Mobility Active Partition Migration is the actual movement of a running LPAR from one

physical machine to another without disrupting the operation of the OS and

applications running in that LPAR.

Applicability

Workload consolidation (e.g. many to one)

Workload balancing (e.g. move to larger system)

Planned CEC outages for maintenance/upgrades

Impending CEC outages (e.g. hardware warning received)

Ability to move from Power7 servers to Power8 servers without an

outage

Inactive Partition Mobility Inactive‎Partition‎ Migration‎ transfers‎a‎partition‎ that‎ is‎logically‎ ‘powered‎off’‎(not‎

running) from one system to another.

Suspended Partition Mobility Suspended Partition Migration transfers a partition that is suspended from one

system to another.



Scheduled downtime

Backups

Save Performance

Online Backups


Maintenance

PTFs

OS Upgrades

Hardware / firmware


Recovery Time

Abnormal IPL


of failure

Restoring lost or

corrupted data

Single Points of Failure

Processor & Memory


DASD

Other I/O

High availability

solutions

Support for key

environments

Usability


Compliance


Unscheduled Downtime: Recovery Time

IPL performance improvements

7.1/7.2 Access Path recovery and Journal synchronization– Significant improvement in some environments (including IASP vary on), particularly where large

Access Paths are rebuilt unexpectedly instead of recovered from the journal• 7.1 Cumulative PTF package C4283710 and/or DB2 PTF Group SF99701 Level 32

• 7.2 Cumulative PTF package C4276720 and/or DB2 PTF Group SF99702 Level 3

7.2 Main Store Dump (MSD) improvements– Storage Management Subset Directory Recovery (SRC C6004250) on systems with very large

(>4GB) permanent directories

– Smart Dump for User-Initiated MSDs and XPF-related crashes

• Prior to 7.2, these were always Full Dumps requiring all main store to be dumped• Smart dumps require only a subset (around 10%) of main storage to be copied to disk which

greatly reduces the time needed for this MSD step

– New message on Copy Status screen indicates when Smart (subset) dump vs. Full dump being copied (factor into IPL recovery time/decision making)

“Best Practices for Managing Time Needed for Main Storage Dump (MSD)” Technote

– Latest recommendations, enhancements, and PTFs to help manage and reduce time required for a MSD

http://www-01.ibm.com/support/docview.wss?uid=nas8N1020270


Main Store Dump Smart-Dump Indicator

Prior to 7.1, when copying a Main Store Dump to disk, SRC C6xx4404 is displayed where xx is the percent completed for copying the dump

In 7.1 (and 6.1.1 with PTF MF58168), the SRC is later changed to indicate what type of dump is being copied (xx still displays the percent complete):

Full dump:

SRC C6xx1404: Copying a compressed full dumpSRC C6xx2404: Copying a uncompressed full dump

Subset dump ("smart dump"): Much shorter/faster than a full dump !SRC C6xx3404: Copying a uncompressed subset dumpSRC C6xx4404: Copying a compressed subset dump

In 7.2, a message is displayed on the MSD copy status screen while the copy is in progress indicating the type of dump being copied and the percent complete

– To see this information, press Enter on the MSD summary screen ("Main Storage Dump Occurred" screen), select "Work with current main storage dump (MSD)" on the MSD Manager screen, and then press F11=Copy status


Unscheduled Downtime: Recovery Time

7.1 TR4 Remote Restart

– Recover and reboot partition on another server after an unplanned

server failure

– Similar prerequisites as for LPM (VIOS, external storage, etc.)

• Combine with Power Enterprise Pools for maximum flexibility/efficiency

– Requires either

• IBM Systems Director VMControl

– or –

• HMC V8R8.1.0 – (Simplified Remote Restart with HMC 8.820)

– Includes new command to initiate a Remote Restart operation

(manually or automate using CLI/APIs)


Unscheduled downtime: Recovery time

Restore Enhancements

7.2 Defer restore and journaling of dependent objects

– Also available as 7.1 PTF SI50939

http://www-912.ibm.com/systems/electronic/support/a_dir/as4ptf.nsf/ALLPTFS/SI50939

7.2 Option to not start journaling for restored objects

– New STRJRN parameter on restore command

7.1 New ALWOBJDIF(*COMPATIBLE) value on RSTLIB/RSTOBJ commands

– Essentially behaves like ALWOBJDIF(*ALL) in combination with

ALWOBJDIF(*FILE) for database files (i.e., a single value that does what most

people want to happen)

7.1 Fast Restore of Single Object

6.1 Restore logical and physical files in different libraries in any order


7.1 Fast restore of single object

Save operations track position (physical location on tape) of each object

– New field returned for each object in Save OUTFILE or OUTPUT

– You must retain this positioning information for use during restore

New restore POSITION parameter

– RSTLIB RSTOBJ and RST commands and APIs

– POSITION(*START) is default and gives existing behavior

– POSITION (hexadecimal value) allows you to pass the position for a single object to

be restored

– Requires that sequence number SEQNBR also be specified

Also supported for parallel restores

Very significant performance improvements can result

– For example: Restoring last object from 1.1 million IFS object save went from about

22 minutes to less than 3 minutes.

Backup Recovery Media Service (BRMS) uses this new support


Unscheduled downtime: Recovery time

Journal management enhancements (since 6.1)

Journal libraries and automatically journal new objects in the library

– 7.1 Object name filtering for automatic journaling (select/omit objects based on name)

User can end journaling and then start journaling a file without closing file

STRJRNxx/ENDJRNxx commands to start or end journaling all objects in a library

DSPRCYAP/EDTRCYAP screens show which access paths are eligible for SMAPP protection but are not currently being protected

User control over frequency of forcing changed objects to disk (journal recovery count)

– Choose faster runtime processing vs. faster IPL/vary on recovery after abnormal shutdown

See “Journal management > What's new” topic in the Knowledge Center

– http://www-01.ibm.com/support/knowledgecenter/ssw_ibm_i_72/rzaki/rzakiwhatsnew.htm




7.2 Remote journal over secure sockets (SSL) support

7.1 Automatic restart of remote journaling if ended due to a recoverable comm error

7.1 Ability from source side to view number of retransmissions occurring for a remote journal connection

– Measurements of how far behind source system is at sending data to target (6.1

included measurements of how far behind target system is at receiving data from

source)

7.1 Filtering and not sending journal entries that are not absolutely needed to the target

7.1 Improved WAN performance via larger buffer size (greater of 256KB or

TCP send buffer size on source or TCP receive buffer size on target)

– Also available via PTFs v5r4m0 MF46358, v5r4m5 MF46359, v6r1m0 MF46360

6.1 Use of data port services with up to 4 comm lines for greater resiliency

6.1 Validity checking to verify data received by target matches data sent from source

Remote journal enhancements



Scheduled downtime

Backups

Save Performance

Online Backups


Maintenance

PTFs

OS Upgrades

Hardware / firmware


Recovery Time

Abnormal IPL


of failure

Restoring lost or

corrupted data


Processor & Memory


DASD

Other I/O

High availability

solutions

Support for key

environments

Usability


Compliance


System Hardware RAS Strategy

First Failure Data Capture

AvailabilityReliability Serviceability

RecoverQuality

of PartsHot Repair

Contain

Errors

Thermal

Control

LPAR

Mobility

SpareQuantity

of Parts

Light Path

Diagnostics

De-allocateDesign and

TestingColor Coding


Unscheduled downtime: Single points of failure

Processor & Memory

Instruction Retry (POWER6)

Alternate processor recovery (POWER6)

Active Memory Mirroring for Hypervisor (POWER7 795/780/770)

Dynamic Predictive DIMM deallocation and substitution with

spare/COD memory (POWER8)

See whitepaper "POWER7 System RAS: Key Aspects of Power Systems

Reliability, Availability, and Serviceability“

– http://www.ibm.com/systems/power/hardware/whitepapers/ras7.html

Find POWER8 Technical Overviews at IBM Power Systems Redbooks portal

– http://www.redbooks.ibm.com/portals/power


Unscheduled downtime: Single points of failure

Storage and I/O (since 6.1)

Multipath disk units

– 7.1 Display the level of protection for multipath disk units

Redundant VIOS partitions

Hot spare for RAID

Hot spare for Mirroring

Dual SAS RAID adapter support

– 7.1 Dual SAS RAID adapter with cache and no batteries(use supercapacitor technology instead of batteries)

7.1 Ethernet Link Aggregation (EtherChannel)



Scheduled downtime

Backups

Save Performance

Online Backups


Maintenance

PTFs

OS Upgrades

Hardware / firmware


Recovery Time

Abnormal IPL


of failure

Restoring lost or

corrupted data


Processor & Memory


DASD

Other I/O

High availability

solutions

Support for key

environments

Usability


Compliance


IBM PowerHA SystemMirror for i

Hardware based replication solutions (disk level)

Supports both:

– IBM i replication – any storage

– External storage replication – DS8000, SVC, Storwize models including

V9000 Flash

Integrated – Can manage IBM i and external storage HA from one IBM i

GUI or command line

Reliable – Using IBM replication technologies

Efficient – Deeply integrated with lower levels of the OS

Automated – Minimal IT management required

Versatile – Solutions for any storage, any distance


PowerHA IASP replication technologies

1 site

Shared Storage

External

Storage

PROD HA

Network

External

Storage

Metro Mirror

External

StoragePROD HA

LUN level switching

External

Storage

PROD HA/DR

Network

External

Storage

Global Mirror

External Storage Replication

External

Storage

PROD DR

Network

External

Storage

LUN switch + Global Mirror

HA

PROD DR

Network

External

Storage

Metro Global Mirror

HA

PROD HA

Network

Synchronous Geographic Mirroring

PROD HA/DR

Network

Asynchronous Geographic Mirroring

1 site

Replication

2 site

Replication

2 site

HA + DR

IBM i Replication

3 site

Replication

(DS8K only)


A PowerHA technology for every storage type

Internal

SAS/SSD DS8000

SVC

Storwize XIV DS5000

Other

Storage

Geographic

Mirroring

Metro Mirror

Global Mirror

Metro Global

Mirror

LUN switching

FlashCopy

HyperSwap


Enhancements since 7.1 GA

Complete list, including release date and PTF numbers, is available at www.ibm.com/developerworks/ibmi/techupdates/ha

Examples:

SVC Split Cluster with PowerHA LUN level switching

Metro Mirror, Global Mirror, FlashCopy and LUN level switching for SVC and Storwize storage servers

PowerHA GUI support

Global Mirror target FlashCopy

Reverse FlashCopy support for remote mirror copy and no-copy relationships

WRKCADMRE command

CFGGEOMIR command

CFGDEVASP command

PowerHA support for live partition mobility…


PowerHA 7.2 enhancements

New Express Edition with HyperSwap

‘Instantly’‎switch‎between‎DS8000‎servers‎

Auto-switch for DS8000 failure

Manual switch for planned maintenance

LPM and Hyperswap coordination

SYSBAS Replication Enhancements

Replicate object authority and ownership

70% increase for Admin Domain limit

Reduced Downtime

Better monitoring of vary-on time

Reduced UID/GID synch time during vary-on

Management Improvements

One partition can save multiple production environments


PowerHA Express Edition - Full system HyperSwap

First release (7.2) provides support for DS8000 HyperSwap in full system

replication environments

HyperSwap by itself is a hardware availability solution

– ‘Zero’‎downtime‎switch‎for‎storage‎planned‎and‎unplanned‎outages

– Single partition solution, although can be combined with partition

mobility

– Not a disaster recovery solution

– No protection against software planned or unplanned outages

Once configured, HyperSwap switch will occur automatically in the case of

a DS8K failure, or can be triggered manually before a planned outage

Prod

MetroMirrorSYSBAS SYSBAS

Prod

MetroMirrorSYSBAS SYSBAS

LPM


HyperSwap IBM i 7.2 (& 7.3) GA - April 15, 2016 PowerHA Enterprise Edition


PowerHA Tools for IBM i

Complement and extend PowerHA and IBM Storage capabilities for HA/DR

Helps reduce business risk and improve resiliency for critical applications

Simplifies set up and automation of HA/DR and backup solutions

Reduces cost of maintaining and regular testing of an HA/DR environment

Facilitates flexible deployment options for single or multi-site protection

Assures consistent deployment using best practices and experienced consultants

PowerHA Tools for IBM i is a service offering from IBM Systems Lab Services


PowerHA

Tools for IBM iCapability Benefit

DS

8000

Sto

rwize

Inte

rna

l

Smart Assist for

PowerHA on IBM i

Provides operator commands and scripts to supplement

Pow erHA installation and ongoing operations for IASP

enabled applications.

Simplif ies deployment and ongoing management of

high availability for critical IBM i applications.

Yes Yes Yes

IASP Copy Services Manager(Automated recovery with faster IASP-level vary on, no system IPL)

Flashcopy Automates Flashcopy of IASP for daily off -line backup

w ith seamless BRMS integration.

Increases application availability by reducing or

eliminating backup w indow for routine daily backups.

Yes Yes

LUN-level Switching Simplif ies deployment and automates sw itching of an

IASP betw een IBM i cluster nodes in one data center.

Enables a business continuity manager to provide a

simple, single site HA solution.

Yes*

Metro Mirror

or

Global Mirror

Simplif ies initial deployment and automates ongoing

server and storage management of tw o-site Metro Mirror

or Global Mirror HA or DR solutions. Requires IASP

enabled applications..

Enables a business continuity manager to provide

seamless operation of integrated server and storage

operations for tw o-site high availability or disaster

recovery.

Yes

Metro Global Mirror(MGM)

Extends Pow erHA functionality to provide three-site

server/storage replication solution combining Metro

Mirror for HA w ith Global Mirror for DR. Requires IASP

enabled applications and IBM Tivoli Productivity Center

– Replication (TPC-R).

Enables a business continuity manager to further low er

business risk and maximize business resilience for

highly critical business applications that require three-

site HA/DR protection.

Yes

Full System Copy Services Manager(Automated recovery, requires full system IPL on target LPAR)

XIV

Flashcopy Automates full system Flashcopy for daily off -line

backup w ith integrated support for BRMS w ithout IASP-


Increases application availability by reducing or

eliminating backup w indow for routine daily backups.

Enables an entry solution w hile planning IASP

enablement.

Yes Yes Yes

Metro Mirror

or

Global Mirror

Simplif ies initial deployment and automates ongoing

server and storage management of tw o-site Metro Mirror

or Global Mirror HA or DR solutions. w ithout IASP-


Enables a business continuity manager to provide

seamless operation of integrated server and storage

operations for HA or DR. Enables an entry solution

w hile planning IASP enablement.

Yes

PowerHA Tools for IBM i

*DS8000 support available w ith Pow erHA Tools for IBM i 6.1 or earlier, included in Pow erHA SystemMirror 7.1


PowerHA Service Offering Description

IBM i High Availability Architecture

and Design Workshop

An experienced IBM i consultant will conduct a planning and design

workshop to review solutions and alternatives to meet HA/DR and

backup/recovery requirements. The consultant will provide an architecture

and implementation plan to meet these requirements.

PowerHA for IBM i Bandwidth Analysis An experienced IBM i consultant will review network bandwidth requirements

for implementing storage data replication. IBM will review I/O data patterns

and provide a bandwidth estimate to build into the business and project plan

for clients deploying PowerHA for IBM i.

IBM i Independent Auxiliary Storage Pool

(IASP) Workshop

An experienced IBM i consultant will provide jumpstart services for migrating

applications into an IASP. Training includes enabling applications for IASPs,

clustering techniques, plus managing PowerHA and HA/DR solution options

with IASPs.

PowerHA for IBM i Implementation Services An experienced IBM consultant will provide services to implement an HA/DR

solution for IBM Power Systems servers with IBM Storage. Depending on

specific business requirements, the end-to-end solution implementation may

include a combination of PowerHA for IBM i and/or PowerHA Tools for IBM i,

plus appropriate storage software such as Metro Mirror, Global Mirror and/or

Flashcopy.

IBM Lab Services Offerings for PowerHA for i

For more information on PowerHA Tools for IBM i offerings and services,

contact: Mark Even [email protected] 507-253-1313

www.ibm.com/systems/services/labservices [email protected]


Additional resources

IBM i 7.2 wiki

– https://www.ibm.com/developerworks/community/wikis/home?lang=en#!/wiki/IBM%20i%20

Technology%20Updates/page/IBM%20i%207.2%20-%20Base%20Enhancements

“What's‎new”‎topic‎in‎the‎Knowledge‎Center

– http://www-01.ibm.com/support/knowledgecenter/ssw_ibm_i_72/rzahg/rzahgicoverview.htm



IBM i 7.2 Availability

– https://www.ibm.com/support/knowledgecenter/ssw_ibm_i_72/rzahg/rzahgavailability.htm


PowerHA resources

IBM PowerHA web site

– http://www-03.ibm.com/systems/power/software/availability

IBM PowerHA SystemMirror for i wiki

– http://www.ibm.com/developerworks/ibmi/ha/

IBM STG Lab Services

– http://www-03.ibm.com/systems/services/labservices

Redbooks at http://www.redbooks.ibm.com/portals/power– Implementing PowerHA for IBM i - SG24-7405-00

– IBM i 6.1 Independent ASPs - SG24-7811-00

– PowerHA SystemMirror for IBM i Cookbook – SG24-7994-00

– IBM i and IBM Storwize Family: A Practical Guide to Usage Scenarios –

SG24-8197-00

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