IBM iHA/DR and PowerHA Strategy - cbs1.com.my · Welcome to the Waitless World IBM iHA/DR and PowerHA Strategy Created Steven Finnes Presented by Mervyn Venter [email protected]

Welcome to the Waitless World

IBM i HA/DR and PowerHA Strategy

Created Steven FinnesPresented by Mervyn [email protected]

© 2016 IBM Corporation


Session objectives

• Understand the concept of shared storage clustering• Typical Storage Based HA/DR PowerHA configurations• Flashcopy• New PowerHA HyperSwap clustering• PowerHA with geomirroring and internal disk • PowerHA geomirror price example (amazingly low cost solution)• A quick profile of the PowerHA customers around the world• PowerHA and CBU for i example• PowerHA and Enterprise Pools • CBU for PowerHA for the E880 for huge savings and fast failover• Lab services

– PowerHA FSR – New Advanced Copy Services – New multi-target PowerHA with DS8K



PowerHA shared storage clustering solutions

• High Availability (HA) Management – data center – Sta ndard Edition– Clustering for mission critical application availability– Planned and unplanned outage management– Shared storage resiliency

• Disaster Recovery (DR) Management – multi-site – Ente rprise Edition– Multi-Site clustering (covers both HA and DR)– Integrated storage based replication – Simplified compliance testing Data Center Clustering

Multi-Site Clustering



PowerHA SystemMirror Shared Storage Cluster

Redundant SAN

Redundant LAN

Storage Enclosure

Server A Server B

Different Failure Types:� IP Loss Detection� Loss of Storage� Application Interruption� Server Crash� Loss of Power

Configuration Options� Active / Passive

Cluster Configuration

Benefits:� Automated Fallover� Non disruptive upgrades PTFs� Application Monitoring� Implemented in SLIC � Event / ERROR Notification� GUI, CL mgmt



Admin domain

PowerHA basic concepts

• PowerHA SystemMirror creates and manages a shared s torage cluster topology– IASP volume group hosts the DB, IFS data– Admin Domain manages the sysbas data– Note that the foundational topology does not involve replication

Application data

(IASP)aka (volume group)



IBM storage based high availability configurations

Application

Application

Example: high availability configuration, PowerHA Standard Edition cluster

Example: high availability configurationPowerHA Enterprise Edition Cluster

Metro Mirror



• PowerHA Enterprise Edition with Global Mirror replication• Unlimited distance• Typically used for disaster recovery

Application

Global Mirror

PowerHA Storage based disaster recovery configuration



• Requirements– Multi-site configurations– Data center/campus component for HA– Second site for DR

• Solution Strategy: – Unified clustering solution for data center & multi-site resiliency– PowerHA SystemMirror Enterprise Edition

unified two-site HA/DR solution

Application

Metro Mirror or Global Mirror



+ flash copy to minimize backup window

• FlashCopy is an integral part of a PowerHA on IBM i cluster• It effectively eliminates your backup window• Full system flash copy is also an option though not as seamless as with IASPs

Prod LPAR

IASP

IASP

FlashCopy

FlashCopy LPAR



IBM PowerHA SystemMirror on i data resiliency options

Supported Solutions

Geographic MirroringIBM i host-based mirroring between data in IASPs

LUN-level switchDS8000, SVC, or Storwize hosted IASP LUNs switchable between IBM ipartitions

Metro MirrorSynchronous DS8000, SVC or Storwize storage-based mirroring

Global MirrorAsynchronous DS8000, SVC or Storwize storage-based mirroring

Flash CopyDS8000, SVC or Storwize point-in-time copy



two site traditional cluster with Metro Mirror

• Traditional two-site Metro Mirror cluster configuration• Synchronous replication limits effective distance due to lag• IASP replication synchronous to application state (real-time identical copies)• Server outage management via a PowerHA cluster operation• Storage outage management via a PowerHA cluster operation

Application

Metro Mirror



• Two-site DS8K HyperSwap PowerHA Enterprise Edition cluster configuration• Server outage management via a PowerHA cluster operation• Storage outage management via a HyperSwap switch

Application

Metro Mirror

Site one Site two

HyperSwap

enterprise edition HyperSwap solution for high availability



Enterprise edition HyperSwap cluster “under the hood”

• HyperSwap has the effect of making the replicated pair of IASPs appear as a single virtual IASP

– HyperSwap switches the source and target IASP and SYSBAS in the event of a storage outage

– The source IASP is mirrored to the target IASP via Metro Mirror

– The source and target SYSBAS data are mirrored via Metro Mirror

• In the event a storage outage event, the source system switches to the mirrored IASP and the mirrored SYSBAS• In the event of a production server outage, PowerHA conducts a failover to the target production server, (the virtual

IASP is switched to target) Metro Mirror will reverse direction of replication and production resumes on the secondary power server

• If VIOS is deployed, LPM can be used for firmware updates, load balancing etc• DS8800 and above (TPC-R not utilized)

Virtual IASPVirtual IASP

MetroMirror

MetroMirror

Metro Mirror

DS80000

DS80000

DS8000DS8000

HyperSwapHyperSwap

*SYSBAS

*SYSBAS

*SYSBAS

*SYSBAS

IASP IASP



Three site MGM cluster with HyperSwap

IBM PowerHA System Mirror for i Planning Insights:IBM plans to introduce the capability to add a third system connected to the PowerHA for i

HyperSwap pair via either a Metro Mirror or Global Mirror link.

Metro Global Mirror (MGM) cluster with Hyper Swap

Application

Metro Mirror Global Mirror

Site one Site two Site three

HyperSwap

IBM’s statements regarding its plans, directions, and intent are subject to change or withdrawal without notice at IBM’s solediscretion. Information regarding potential future products is intended to outline our general product direction and it should not be relied on in making a purchasing decision. The information mentioned regarding potential future products is not a commitment,promise, or legal obligation to deliver any material, code or functionality. Information about potential future products may not be incorporated into any contract. The development, release, and timing of any future features or functionality described for our products remains at our sole discretion.



Three site MGM cluster with HyperSwap

IBM PowerHA System Mirror for i Planning Insights:IBM plans to introduce the capability to add a third system connected to the PowerHA for i

HyperSwap pair via either a Metro Mirror or Global Mirror link.

Metro Global Mirror (MGM) cluster with Hyper Swap

Application

Metro Mirror Global Mirror

Site one Site two Site three

HyperSwap

IBM’s statements regarding its plans, directions, and intent are subject to change or withdrawal without notice at IBM’s solediscretion. Information regarding potential future products is intended to outline our general product direction and it should not be relied on in making a purchasing decision. The information mentioned regarding potential future products is not a commitment,promise, or legal obligation to deliver any material, code or functionality. Information about potential future products may not be incorporated into any contract. The development, release, and timing of any future features or functionality described for our products remains at our sole discretion.



• PowerHA geomirror cluster (typically with internal disk and < 4 Tbytes )• Complete HA/DR coverage for all outage types (hardware, middleware, operator error)• Off line back-up followed by source side /target side tracking change resynchronization• Both bandwidth and network quality are important. • Synchronous mode up to 40 KM, production and target always identical • Asynchronous mode unlimited distance, production and target ordered and consistent

PowerHA – geomirroring – HA/DR clustering

geomirror

target partition

IASPIASP

production partition

DB2, IFS DB2, IFS

Sysbas Sysbas

Admin Domain



Admin domain*

• Non-cluster PowerHA configuration, full system replication, this is disaster recovery setup, this is not a HA solution• IBM client placed into a network storage space which is placed into an IASP• Guest and host partition must be shut down before remote host and client can be restarted• Limitation: no heart beating, can’t do concurrent OS upgrades, is more resource intensive than a PowerHA cluster• Note that everything is being replicated so network bandwidth and quality is critical• Any roll over or failover requires an abnormal IPL of target

Geomirroring – i hosting i remote VM restart for DR

geomirrorclient

partitionIBM ihosted partition

NWSSTG

i host partition

IASP

* Admin Domain on host is optional

client

partition IBM i hosted partition

NWSSTG

i host partition

IASPApplications



• Production server S814 has one core,CBU server, S814 has one core. • Since geomirror consumes only a fraction of the CPW you only need one core on the CBU Production site and DR

site are 400 miles apart therefore we will need geomirror async mode. Geomirroing async mode costs $3400 per core. Since customers in this environment typically use internal disk and therefore can not do switchable luns, we put geomirroring sync mode into the standard edition. In all other cases, storage replication requires the Enterprise Edition.

• In this case the customer needed 100Mbits of bandwidth (lab services will do the sizing for bandwidth)• So let’s do the math to see what this HA solution cost us. Do we need a calculator ? $3250x2 = $6800

• $6500 for an HA/DR solution that requires very lit tle care and feeding.

Small client price example with PowerHA and geomirror

$ 6500 for a complete HA/DR solution



• PowerHA with geographic mirroring is popular with our smaller IT shops

– Very inexpensive compared to logical replication solutions, its easy to use and requires little day to day monitoring and maintenance.

– Typically used by shops with under 2 Tbytes and on internal disk– After an unplanned outage the target data is replicated back to the source therefore the larger the

IASP the longer the resync time– Doing a tape backup off of the target works great, Quiesce the IASP on the current production

copy system (see speaker notes) if you want to get a “clean transaction boundary. If you choose to do the quiesce (recommended), do it during a quite time.

• Geomirroring is IBM i mirroring of the data writes to the IASP source and target over IP– Referred to as host based replication (as opposed to storage based replication)– IBM i storage management sends the memory pages to both the remote and local server either

synchronously or asynchronously– Synchronous distance is typically under 30 or 40 KM but distance is driven by application response

time requirements– Bandwidth and quality of service are both important. When we’ve seen issues they usually come

down to network quality.

PowerHA with geomirroring



Who are our PowerHA for IBM i customers ?

• Over 1000 are clients with fewer than four processor cores.– These customers typically are using PowerHA with geomirroring and internal disk– About 20% of these are using ihosting i with geomirroring for a full system replication solution.

Although the ihosting I with geomirring is classified as a disaster recovery solution, some clients prefer it because its relatively easy to set up and doesn’t require a cluster configuration where the database is separated out into an IASP.

– The customers using PowerHA with geomirroring are represented in every industry; municipalities, retail, distribution, banking, manufacturing

• The other half of the PowerHA on IBM i customers are using IBM storage servers. – The DS8K implementations are LUG class customers who nearly always have at least two sites

involved in the cluster and increasingly, three sites.– The rest of the customers are using Storwize servers ranging from the V3700 on up to the SVC or

the V9000. The V7000 has been the most popular in recent years.– The motivation behind storage servers ranges from scalability, robustness, flash copy and the

capability to support various combinations for HA and DR in a PowerHA cluster.

• PowerHA for IBM I is installed in accounts ranging from small to very large enterprises. Virtually all of them (over 95% ) moved off of logical replication solutions.



• PowerHA is priced per processor core used in the HA/DR cluster• Taking advantage of the CBU topology in the example topology:• Assume 880 cluster, 7 iOS and 7 PowerHA• PowerHA price: 5,250/core = $36,750…..savings: $42,000 • IBM i price: 59,000/core = $413,000….. savings: $826,000

Total savings….$868,000

PowerHA Price Example…Economic Value - TCA



PowerHA V7 with Enterprise Pools example

Processor, Memory, Software

PowerHA

Animated chart

# nodes # s proc # m processors price s memory m memory t memory m price s price total memory Total

Power E870 Production 4.19 2 8 56 $0 desired 320 960 1,280

IBM i 8 56 $3,776,000 actual 320 1,000 1,320 $0 $0 $0

PowerHA Ent Ed 8 56 $336,000.00

total $4,112,000.00 production $4,112,000

Power E870 Backup 4.19 2 8 0 $0 660 0 $0 $0

IBM i 1 0 $59,000

PowerHA 1 0 $5,250.00

total $64,250 backup $64,250

total processor $4,176,250 total mem $0 $4,176,250

proc savings $4,047,750.00 mem savings $0

total savings $4,047,750.00



• This represents the net savings assuming that the frames, cables, processor nodes etc are the same between the two systems

• Production server is a 64 core 870 with 1.32TB of memory (initially they wanted1.28TB however mobile comes in units of 100GB)

– 75% of memory or 1000 GB is the max allowed mobile, the remaining 320 is static for a total of 1.32TB

– 56 of the production processor activation are mobile 8 are static, 64 PowerHA and IBM i entitlements

• Secondary server is a 64 core 870 with 8 active cores and 1.32T

– 50% installed memory must be active therefore 660GB is mobile, one PowerHA and one IBM i entitlement

• Total savings for IBM i, PowerHA EE, processor activations and memory = $ 4,047,750.00

Two node PowerHA cluster with Enterprise Pools

# nodes # s proc # m processors price s memory m memory t memory m price s price total memory Total

Power E870 Production 4.19 2 8 56 $0 desired 320 960 1,280

IBM i 8 56 $3,776,000 actual 320 1,000 1,320 $0 $0 $0

PowerHA Ent Ed 8 56 $336,000.00

total $4,112,000.00 production $4,112,000

Power E870 Backup 4.19 2 8 0 $0 660 0 $0 $0

IBM i 1 0 $59,000

PowerHA 1 0 $5,250.00

total $64,250 backup $64,250

total processor $4,176,250 total mem $0 $4,176,250

proc savings $4,047,750.00 mem savings $0

total savings $4,047,750.00



Offering for – AIX and IBM i Power E880 customers – HA/DR deployments requiring fast failover via active standby memory

and processors

Offering Entitlements– One or two no charge processor nodes depending on the primary

server configuration – No charge active standby memory and processor cores via Elastic

Capacity on Demand (ECOD) = PowerHA licensed cores on the primary system (minus 8 for required the activations on the CBU)

Power Systems CBU for

Offering requirements overview– Primary and CBU must be same GHz of Power E880– Primary can be new or installed box, CBU must be a new box– Primary system must have a minimum of 75% of the processors

activated and 50% of installed DIMM memory active– One entitlement of AIX or IBM i & PowerHA non transferable – Maximum of 8 processor activations on the CBU and minimum of

25% of DIMM memory active – Minimum of 8 PowerHA entitlements on the primary system– No charge ECOD days must be activated upon install of CBU

system and remain active for 365 days – The ECOD processor days can only be used on the Power E880

CBU system and must be renewed annually and customer is required to maintain minimum requirements

– Registration of primary system and CBU prior to CBU order fulfillment (registration validates minimum requirements)

– Primary and CBU must be within the same enterprise

Primary CBU

entitlement transfer

• All transferable entitlements must originate on the primary system and may not run concurrently on the primary system and the CBU system

• Subsequent to the initial workload deployment, production partitions may be moved to the CBU system for workload balancing etc

• The total number of processor entitlements running production across both servers can not exceed the original total licensed entitlements.



Power E880 Servers in a CBU for PowerHA configuration

Power E880 CBU System: • 4.35 Ghz or 4.0 Ghz system (must match primary)• 1 to 4 nodes per CBU system*• Node feature codes:EPBG,EPBH,EPBB,EPBD• Maximum of 8 active cores • 365 x N-8 = # of no charge ECOD processor days• 365 x N-8 x 32 GB no charge ECOD memory days• 25% of DIMM memory active

Power E880 Primay System:• 4.35 GHz or 4.0 GHz system• 1 to 4 nodes per system • Node feature codes: EPBB, EPBD• N cores of PowerHA entitlements• 75% of installed processors must be active

and licensed with AIX and/or IBM i (Standard or Enterprise for either AIX or i)

• A minimum of 8 cores must be licensed with PowerHA (Standard or Enterprise)

• 50% DIMM memory active

CBU system specify feature code: EB3J

*Select processor nodes from:No charge processor nodes: EPBG, EPBH• One or two nodes on the primary = 1 no-charge node on the CBU•Three or four nodes on the primary = 2 no-charge nodes on the CBU•For charge processor nodes: EPBB, EPBD

PowerHA cluster



• Prior to ordering the CBU with PowerHA fill in the worksheet posted on the CBU registration website to determine minimum configuration requirements and no charge processor node and ECOD activations

– Submit CBU entitlement worksheet ([email protected])– IBM verifies client configuration entitlements (no charge processor nodes and ECOD days)

• Customer agrees to CBU terms and conditions via registration website• Send configuration files to [email protected]• After project office approval, order the approved CBU configuration

– Specify the # of no charge processor nodes (EPBG or EPBH)– Econfig will automatically add the CBU system feature code: EB3J

• After CBU system is installed, configuration of Primary and CBU system is sent to [email protected]

– CBU project office will apply the appropriate number of ECOD days to Power E880 CBU system

• Implement TCOD (temporary COD) via standard process– TCOD contract signed by client– ECOD enablement codes ordered via MES

Order Process/Registration

Registration website: http://www-03.ibm.com/systems/power/hardware/cbu/



PowerHA FSR (Full System Replication)

Functionality PowerHA FSR

Integrated automation/management from IBM i � �*

IBM i based recovery for Data/Commitment control etc

� �

FlashCopy saves for scheduled outage reduction (full system flash requires an IPL to save the data to tape)

� �*

RTO minutes hour

Minimize bandwidth requirements �

Minimize performance overhead of sync replication ( not replicating temporary I/O, savf’s etc )

�

Provide capability to do PTF, operating system, and software packages concurrent to production

�

Active host at HA/DR ( hardware error reporting ) �

Outage management requires IPL processing �

No IASP migration required �

FSR automates full system replication

It’s relatively simple to migrate to from internal disk and logical replication

* Via Lab Services tools• Ensure that the solution meets the SLA of the customer

• Due the proper sizing's for performance and bandwidth

• Use as a first step in the transition to clustering

IPL



• Major release boundary for existing ACS customers - upgrade path from ACS 3.1� ACS 4.0 was only for FSR with V7K customer

• Support for FSR with DS8K

• Revised Global Mirror support for IASP

• Withdrawn DS8K MGM support� ACS 3.1 will be the last release to support old style MGM

• Support for Multi Target Metro/Metro Mirror with CSM

• Support for Multi Target Metro/Global Mirror with CSM

• Improved SVC/V7K for IASP

• Detach capability for DS8K with IASP’s when used with CSM

Advanced Copy Services (ACS) 4.1



• Multi Target PPRC support on with iCSM(ACS) allows 2 configuration. • Metro/Global Mirror• 1 synchronous set of pairs providing an RPO of zero data loss • 1 asynchronous set of pairs providing an undetermined RPO based on bandwidth and writes• Requires 3 DS8870’s with 7.4 or higher • Requires CSM or complete TPC(spectrum control) solution • Requires IBM i 7.1 or higher. This requirement is due to Java requirements for the CSM client• CSM can be loaded on any IBM platform including PPC linux, AIX, windows or zOS ( soon IBM i?)

Multi Target PPRC Support



• Multi Target PPRC provides a large functional uplift over the older MGM cascaded support. The main highlights are

� No restrictions on using incremental FlashCopy in the environment. � MGM did not allow any FlashCopies to be incremental without causing full resync’s on switchover

� No requirement for all environments to use the same LSS’s ( previous toolkit restriction )� No full resync’s when switching to DR.

� MGM required a full resync for any switch to D/R� No action required in a multi target environment when H2 fails

� MGM required customer to take manual action to remove H2 and start H1->H3 to maintain replication to the third site

� Any node can be detached for D/R testing ( provided it is currently running )� No detach capability at all

� A switch from H1 -> H2 can be performed when H1 -> H3 is suspended/failed� This would cause a full resync with MGM

� A switch over from H1 -> H3 is possible if H1 -> H2 is suspended/failed� Not possible with MGM

� For MM/GM, a cascaded environment back to H1 then to H2 will be setup by CSM, then a Global Mirror from H3 -> H1 will be started by iCSM(ACS)

� Not possible with MGM… everything is a full resync ( an multiple of those )� New GUI with CSM

MM/GM after a

switch to H3… it

does not know that

we have started

Global Mirror over

the top of H3->H1

Multi Target PPRC Support



Additional resources for PowerHA IBM i

• PowerHA Wiki– www.ibm.com/developerworks/ibmi/ha/

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

• PowerCare– http://www-03.ibm.com/systems/power/support/powercare/

• Redbooks at www.redbooks.ibm.com

• NEW REDBOOKs…Draft Version Available in Jan 2016 ! – We’re cleaning house and bringing out a new series



31

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



32


Capability Benefit

DS

8000

Storw

ize

Internal

Smart Assist for PowerHA on IBM i

Provides operator commands and scripts to supplement PowerHA installation and ongoing operations for IASP enabled applications.

Simplifies 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 with seamless BRMS integration.

Increases application availability by reducing or eliminating backup window for routine daily backups.

Yes Yes

LUN-level Switching

Simplifies deployment and automates switching of an IASP between IBM i cluster nodes in one data center.

Enables a business continuity manager to provide a simple, single site HA solution.

Yes*

Metro MirrororGlobal Mirror

Simplifies initial deployment and automates ongoing server and storage management of two-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 two-site high availability or disaster recovery.

Yes

Metro Global Mirror(MGM)

Extends PowerHA functionality to provide three-site server/storage replication solution combining Metro Mirror for HA with Global Mirror for DR. Requires IASP enabled applications and IBM Tivoli Productivity Center – Replication (TPC-R).

Enables a business continuity manager to further lower 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 with integrated support for BRMS without IASP-enabled applications.

Increases application availability by reducing or eliminating backup window for routine daily backups. Enables an entry solution while planning IASP enablement.

Yes Yes Yes

Metro MirrororGlobal Mirror

Simplifies initial deployment and automates ongoing server and storage management of two-site Metro Mirror or Global Mirror HA or DR solutions. without IASP-enabled applications.

Enables a business continuity manager to provide seamless operation of integrated server and storage operations for HA or DR. Enables an entry solution while planning IASP enablement.

Yes Yes




SmartAssist for PowerHA on IBM i

Sample PowerHA Assist Commands

• ADDCADUSR - adds all user profiles in the Admin Domain• Create user profile exit point to auto add user profiles on creation• DLTPRFCLU - delete profiles around a cluster• CHKDUPLIBS - check for duplicate libraries in SYSBAS and IASP

across the cluster• CHKENVRCY – Analysis tool for files, journals etc to ensure an

unscheduled switch can come online as fast a possible• Global Mirror statistics programs to monitor performance and

recovery points• SET/RTVFACT – control the PowerHA failover actions to be able to

turn on/off automatic failover for specific cluster events• STRALLNOD - start all cluster nodes• Sample programs for automatically starting PowerHA and

Geographic mirroring on IPL• RTVCPYSSN - used multiple API’s to retrieve PowerHA session

status and primary node information into a CL program



IBM Lab Services Offerings for PowerHA for IBM i

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 optionswith IASPs.

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

For more information on PowerHA Tools for IBM i offer ings and services, contact: Mark Even [email protected] 507-253-1313

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



InternalSAS/SSD DS8000

SVCV840,V9000

StorwizeXIV DS5000

Other Storage

Geographic Mirroring

Metro Mirror

Global Mirror

Metro Global Mirror

LUN switching

FlashCopy

HyperSwap Coming note: no global mirror link

A PowerHA and storage options

Recommend viewing IBM i POWER External Storage Support Matrix Summary – TechDoc - PRS4563 http://www-03.ibm.com/support/techdocs/atsmastr.nsf/WebIndex/PRS4563 andQuick reference - Storage options for PowerHA SystemMirror for IBM i – TechDoc - TD106243 http://www-304.ibm.com/jct03001c/support/techdocs/atsmastr.nsf/WebIndex/TD106243



PowerHA for IBM i – HA solutions for the 21st Century

PowerHA storage based HA/DR solutions are based on shared storage clustering configurations

PowerHA Solution

� Clustering technology implemented in SLIC eliminates complexity uncertainty

� Designed for automated role swap and failover operations

� Concurrent maintenance for OS upgrades, PTF applies, hardware maintenance

� Flashcopy eliminates backup by enabling save operations concurrent to production

� Operational simplicity staffing is a fraction of what is required with software replication

� IBM service and support

Logical replication solutions

� Complexity and time required to manage software replication

� Fear of failover associated with software replication tools

� Upgrade and maintenance $$$ of software

� Tape Backup takes too long

� Staffing required to manage software replication

� Service and Support



Session summary

• PowerHA for IBM i

• Highly automated solutions for high availability and disaster recovery

• HA/DR solutions based on IBM storage or on internal disk solution

• Ultra low cost modern HA/DR solutions for small customer shops

• Several ways to save money: CBU, CBU for PowerHA, Enterprise Pools

• Lab Services brings expertise and added value like smart assists

• Resources ..new redbooks, the wiki, join the PowerHA on i Linkedin group

Documents

IBM iHA/DR and PowerHA Strategy - cbs1.com.my · Welcome to the Waitless World IBM iHA/DR and PowerHA Strategy Created Steven Finnes Presented by Mervyn Venter [email protected]