High Availability

3 likes Updated 8/27/15, 4:21 PM by POWERHAguyTags: None


PowerHA SystemMirror  


IBM PowerHA SystemMirror (formerly known as HACMP - High Availability Cluster Multiprocessing) provides solutions that maintain high availability, while making the IT environment simpler and more flexibile to respond to changing needs. IBM PowerHA SystemMirror in brief:


  • Simple to manage yet ultra reliable
  • World-class, 24x7 clustering technology with IBM advanced systems technologies
  • Allows for cluster upgrades and system maintenance without interrupting operations
  • Offers multiple recovery and data replication methods
  • Monitors, detects and reacts to hardware and software problems
  • Can be configured to react to hundreds of system events
  • Can move services, users, applications & data to backup systems during scheduled maintenance
  • Simple to configure and flexible to maintain.
  • Key to implement and meet your availability level targets
  • Significantly reduces planned and unplanned outages

IBM PowerHA SystemMirror editions in brief:

  • PowerHA SystemMirror Standard Edition provides high availability in implementations where all cluster nodes can access the same disk storage subsystem.
  • PowerHA SystemMirror Enterprise Edition provides high availability in implementations where cluster nodes are geographically dispersed.

For more information see the PowerHA overview  and:


PowerHA Support

PowerHA and AIX Version Compatibility Matrix 

PowerHA Enterprise Edition Cross Reference

PowerHA Hardware Support Matrix

FAQs page


Fix downloads via Fix Central 

DeveloperWorks PowerHA Forum


PowerHA SystemMirror for AIX Latest News

08/27/2015 qha v9.06  
08/18/2015 Added tip on using poll_uplink  
03/30/2015 Tips and Consideration with Oracle 12cR1 with PowerHA on AIX
03/05/2015 New SRIOV adapter support added to Hardware Support Matrix
08/01/2014 Added links to drafts of updated PowerHA Cookbook and Best Practices


PowerHA v7.1.3 Announcement Letter


PowerHA Library


How To/Tips


Base Level Publications


PowerHA v7 Standard Edition Demos

Migrating/Upgrading to PowerHA v7 Demos

PowerHA v7 Enterprise Edition Demos

PowerHA v6.1 Standard Edition Demos

PowerHA v6.1 Enterprise Edition Demos

Misc HA & AIX Demos

The postings on this site solely reflect the personal views of the authors and do not necessarily represent the views, positions, strategies or opinions of IBM or IBM management.


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