PowerHA is IBM's high availability and disaster recovery solution for AIX. It uses clustering technology to provide continuous availability of applications even during planned or unplanned outages. PowerHA is available in Standard and Enterprise editions, with the Enterprise edition providing additional capabilities for multi-site configurations. Key features of PowerHA include automated workload failover, health monitoring, and support for storage-based replication technologies.
30. Product Marketing and Service Available
Withdrawn from Marketing; Standard Program Services Available
Current PowerHA Releases - New software enhancements, new system and I/O support
PowerHA Service Packs - Software updates, new system and I/O support updates
Fee-based support offering planned
SP update for software, new HW&IO support
Significant new functionality added
2008 2009 2010 2011 2012 2013 2014 2015 2016
PowerHA V5.5
* - Estimated since not currently announced
11/08 4/2012
EOS
PowerHA V6.1
Std/Ent
10/09 4/2015
EOS
2017 2018
PowerHA V7.1 TL0
Std
9/10
*
9/2014
PowerHA V7.1 TL1
Std
PowerHA V7.1 TL2
Std/Ent
PowerHA V7.1 TL3
Std/Ent
TBD
12/11 4/2015
11/12 4/2016
12/13 4/2017
V7.1
End of Service marker (without additional fees)
* * *
* * * *
* *
* * * *
* * * *
* * * *
* * * *
* * *
*
* * * *
* * * *
* * * *
* * * *
* * * *
* *
2019
PowerHA SystemMirror Life Cycle
31. PowerHA SystemMirror V7: Resources
Planning, Install, and Configuration
Redbook (www.redbook.com)
1. IBM PowerHA SystemMirror 7.1.3 for AIX Reference Guide, SG24-8167-00
2. IBM PowerHA SystemMirror Standard Edition 7.1.1 for AIX Update, SG24-8030
3. IBM PowerHA SystemMirror 7.1.2 Enterprise Edition for AIX, SG24-8106-00
4. Exploiting IBM PowerHA SystemMirror V6.1 for AIX Enterprise Edition, SG24-7841
5. PowerHA for AIX Cookbook, SG24-7739-00
6. Deploying PowerHA Solution with AIX HyperSwap, REDP-4954-00
White Papers, FAQ, Knowledge Center
1. PowerHA v7 Rapid Deployment white paper:
https://www.ibm.com/developerworks/aix/tutorials/au-ibm-powerha-system-mirror/
2. PowerHA Home Page: www.ibm.com/systems/power/software/availability/
3. PowerHA Product Documentation (Knowledge Center):
http://www-01.ibm.com/support/knowledgecenter/SSPHQG_7.1.0/com.ibm.powerha.navigation/kc_welcome_ha_71.htm
4. PowerHA Wiki:
https://www.ibm.com/developerworks/community/wikis/home?lang=en#!/wiki/Power%20Systems/page/High%20Availability
5. PowerHA FAQ: http://www-03.ibm.com/systems/power/software/availability/aix/faq_support.html
Education (www.ibm.com/services/learning)
1. What’s New in PowerHA SystemMirror 7 and Migration - Course code: AN65G
2. IBM PowerHA SystemMirror 7.1.2 for AIX Update - Course code: WRB82G
3. PowerHA 7 Planning, Implementing, Customizing and Administration -Course code: AN61G
4. PowerHA SystemMirror 6.1 Migration, Extended Configuration and PD - Course code: AN42G
5. PowerHA/XD: Extended Distance and Disaster Recovery - Course code: AN44G
6. PowerHA SystemMirror for AIX III: Virtualization and Mobility - Course code: AN43G
7. PowerHA SystemMirror 7.1 Planning and Implementation - Course code: AN67G
8. PowerHA 7 Additional Configurations - Course code: AN62G
9. PowerHA SystemMirror 7.1: Customization and Basic Administration - Course code: AN68G
IBM Services Offerings
1. Availability Factory: Contact your IBM representative or an IBM Business Partner and they will contact us via e-mail
(hacoc@us.ibm.com) to learn more.
2. IBM Technology Service Offering for PowerHA SystemMirror Multi Site deployment: http://www-
935.ibm.com/services/us/index.wss/offering/its/a1000032
32. PowerHA SystemMirror V7: Resources…Continued
IBM System Lab Services (LBS) Offerings
Offering Duration Details
PowerHA Deployment Services 2 to 8 days Review of customer requirements
Plan and design PowerHA deployment
Support deployment and document best practices
PowerHA Health Check Week Review current HA deployment
Review business processes
Create guidance, recommendations report
PowerHA and IBM Storage
Planning/Implementation
4 days Education and hands-on activities
Review HA and DR requirements
Plan PowerHA and storage for the environment
PowerHA Disaster Recovery
Workshop
1 to 4 days Develop HA DR requirements by working closely with the on
site customer reps.
Assist in development of action plan and schedule
Visit: ibm.com/systems/services/labservices
Contacts:
1.Linda Hoben – Opportunity Manager hoben@us.ibm.com 1-720-395-0556
2.Stephen Brandenburg – Opportunity Manager sbranden@us.ibm.com 1-301-240-2182
3.Send mail to: stgls@us.ibm.com
code
33. PowerHA SystemMirror V7: Resources…Continued
PowerHA SAP HA Management
White papers and Redbooks
1. PowerHA - SAP HA management Chapter in IBM PowerHA SystemMirror 7.1.3 for AIX Reference Guide, SG24-8167-0
2. PowerHA-SAP LiveCache Hotstandby Solution Guide: http://www-03.ibm.com/support/techdocs/atsmastr.nsf/WebIndex/WP100677
3. LPM of LPARS running SAP: http://www-03.ibm.com/support/techdocs/atsmastr.nsf/WebIndex/WP101471
4. Tuning SAP with Oracle on AIX: http://www-03.ibm.com/support/techdocs/atsmastr.nsf/WebIndex/WP100377
Education and Service Offerings: Contact: isicc@de.ibm.com
PowerHA SAP HA Management:: Plan, Deploy Smart Assist based NetWeaver, ERS deployment design and planning. SAP instances,
databases including liveCache/MAXDB
SAP liveCache HotStandby plan, Deploy PowerHA Smart Assist based liveCache Hotstandby solution design, and deployment
Pre Sales Offering:
PowerHA cluster HA management of SAP
Education and assistance to plan for SAP solutions with PowerHA
PowerHA HA management of Sybase Plan, deploy Sybase ASE HA management by PowerHA Clustering
Duration: Depending on the ordered modules and amount of instances. Estimate will be provided upon request.
35. Additional Resources for PowerHA SystemMirror AIX
• PowerHA Website
– www.ibm.com/systems/power/software/availability/
• Availability Factory
– Contact your IBM representative or an IBM Business Partner and they will contact us via e-mail (hacoc@us.ibm.com) to learn more.
• IBM Technology Service Offering for PowerHA SystemMirror XD deployment
– http://www-935.ibm.com/services/us/index.wss/offering/its/a1000032
• Redbooks
– SG24-7841 IBM PowerHA Enterprise Edition Implementation Guide
– SG24- 7845 IBM PowerHA V7.1
– IBM PowerHA SystemMirror7.1.3 for AIX Best Practices & Reference Architectures SG24-8167-00 (stay tuned…not available yet)
– IBM PowerHA SystemMirror 7.1.2 Enterprise Edition for AIX - SG24-8106-00 http://www.redbooks.ibm.com/abstracts/sg248106.html?Open
– Deploying PowerHA Solution with AIX HyperSwap - REDP-4954-00 http://www.redbooks.ibm.com/redpieces/abstracts/redp4954.html?Open
– PowerHA SystemMirror for AIX Base Pubs http://publib.boulder.ibm.com/infocenter/aix/v7r1/index.jsp?topic=
%2Fcom.ibm.aix.powerha.navigation%2Fpowerha_pdf.htm
• Education: PowerHA for AIX Implementation, Config and Administration AN410
– Go to IBM.com/services/learning (search for AN410 or PowerHA)
• Education: Lab Services AN44 Extended Distance and Disaster Recovery
– http://www- 304.ibm.com/jct03001c/services/learning/ites.wss/us/en?
pageType=course_list&subChapter=194&subChapterInd=S®ion=us&subChapterName=AIX+high+availability&country=us
– http://lpar.co.uk/HA/home.html
• GLVM white paper
– www.ibm.com/systems/resources/systems_p_os_aix_whitepapers_pdf_aix_glvm.pdf
• IBM storage virtualization offerings
– www.ibm.com/systems/storage/virtualization
• SAP consulting services for POWERHA and POWERVM
– gehenni@us.ibm.com
– sbranden@us.ibm.com
• Wiki
– http://www.ibm.com/developerworks/wikis/display/WikiPtype/High%20Availability
– https://w3-connections.ibm.com/wikis/home?lang=en-us#!/wiki/hacmp/page/PowerHA%20for%20AIX
Complete IBM Power Systems integrated end to end solutions for HA DR
Focus: 24x 7 Application availability through planned or unplanned outage events
Deeply integrated extension of host operating system (AIX, IBM i)
Developed and supported by the Power Systems engineering development team
HA Clustering technology
Clustering provides the applications a complete resiliency infrastructure
Cluster monitors and manages primary and secondary resources for HADR operations
Storage based data resiliency
Data resiliency is an extension of the host system storage management architecture
Storage volumes are either switchable or mirrored between nodes in the cluster
Hardware based replication services for Multi-Site Operations
Host Based Replication (geomirroring for IBM i, or GLVM for AIX)
Storage Base Replication (Metro Mirror or Global Mirror)
Overall solution characteristic
Automation, minimal IT operations involvement
Data between primary and secondary nodes always in sync always ready for a failover event
These are a couple of examples of PowerHA configurations. To help the IBM I client to grasp onto this concept you talk about the top configuration
They have hard time trying to bridge from the remote journaling concept…your showing them…look…the basic building block of a PowerHA cluster does NOT include replication !!
You have to try to get them off of the remote journal mind set and over onto the clustering mind set…
For the AIX clients. the bottom picture is the idea we want them to consider… (as well the IBM I clients)..although IBM I clients are accustom to the idea of multi-site configurations they are not always grasping the ideas around Metro Mirror and Global Mirror
This is an emerging trend and with the PowerHA V7.1.3 we have addressed the issues of automated failover between sites. You can expect that we will introduce some options that will allow you to conduct DR testing quickly and easily as well. At this stage there is no reason for our clients to be fearful of multi-site clustering..its up an running all over the world !
Self explanatory chart. Basically pointing out the options for mutli-site replication for PowerHA AIX Enterprise Edition
Stretched Cluster is suitable for short distances (upto 100 kms) where disks can be shared between sites to be used as repository disks. You should always choose a stretch cluster if possible. It can provide three layers of heartbeat redundancy ; Comm, SAN, and repository disk. This virtually eliminates the possibility of a split site event.
PowerHA SystemMirror 7.1.3 uses the Cluster Aware AIX (CAA) services to configure, verify
and monitor the cluster topology. This is a major reliability improvement because core
functions of the cluster services such as topology related services now run in the kernel
space. This makes it much less susceptible to be affected by the workload generated in the
user space.
120-300KM equals ~ 74-186miles
Per Storage ATS VDisk Mirroring should extend to 10KM with FC cable & LW SFPs from node at one site to switch at other site.
http://pic.dhe.ibm.com/infocenter/aix/v6r1/index.jsp?topic=/com.ibm.aix.baseadmn/doc/baseadmndita/devpathctrlmodatts.htm
The following table displays the optimal settings to use for a HyperSwap configuration.
Table 1. HyperSwap configuration settings
NameComponentValueDescription
dyntrkProtocol driver (fscsi)EnabledProvides transparent I/O recovery if the N_port ID for a device is changed. For example, due to movement of the Fibre Channel from one switch port to another port. This option is handled at the Host Bus Adapter (HBA) level.
fc_err_recovProtocol driver (fscsi)fast_failAllows you to detect Fibre Channel problems between the switch and the storage device.
hcheck_intervalDisk driver (hdisk)60The time interval when a health check request is sent to the storage device. The default setting is 60 seconds.
rw_timeout 30 seconds (default and lowest for ds8k luns)
timeout_policy fail_path (default)
Description
1. 3 sites
Site1 has 2 AIX nodes(RAC1 and RAC2), 1 DS8K
Site2 has 2 AIX nodes(RAC3 and RAC4), 1 DS8K
Site3 has one AIX node as NFS server
2. deploy 4 nodes RAC and 4 nodes PowerHA cluster, using Oracle ASM to manager hdisks
3. PowerHA cluster has one user MG, one repository MG, one concurrent RG which including the user MG. The user MG has several disks for database
4. Oracle CRS has 3 vote devics, one is from DS8K-1(marked Vote-1), one is from DS8K-2(marked Vote-2) and one is from NFS server(marked Vote-3)
the LUN from DS8K-1 and DS8k-2 don't need to configure PPRC function
5. there is 1 CAA repository disk, configure pprc pair and enable hyperswap function on AIX
6. there are several hdisks for loading Oracle database, configure pprc pairs and enable hyperswap fuction on AIX
7. the luns(act as vote devices, CAA repository disk and loading Oracle data) belong to different LSS
DLPAR and Power Enterprise Pools are a way to significantly reduce the cost of implementing PowerHA clusters. In essence the PowerHA “talks to the HMC which then takes the action to activate the resources on the target, after a planned fallover has occurred the source is collapsed down to the number of cores prior to the role-over. Point is that you need to license all of the target cores on the secondary node. At present you will need either write scripts or work with lab services to automate this with PowerHA. We are looking to add this capability in a future TL.
Similar to the previous example with the CBU on IBM i, this is a case of two 770s and PowerHA using DLPAR. In this case were using one core on each of the secondary nodes thereby saving our clients 8 AIX licenses and and 8 PowerHA licenses. The key to this from a compliance perspective is that at any moment we are using only the number of cores that we are entitled regardless of which of the boxes in the cluster on which we happen to be running.
Notes:
Instructor notes:
Purpose — List the unit objectives
Details —
Additional information —
Transition statement —