IBM PowerHA SystemMirror for i (5770-HAS)
IBM® PowerHA® SystemMirror® for i (5770-HAS)
- Before you upgrade your system to IBM i 7.2, if you have 5770-HAS (IBM PowerHA SystemMirror for i) installed, make sure that your HA version is 2.2. The Change Cluster Version (CHGCLUVER) command can be used to adjust the current version of the PowerHA product.
- IBM PowerHA SystemMirror for i has been restructured. Standard edition is now option 2 and Express® edition has been added which supports HyperSwap® and is option 3.
- The High Availability Solution Manager GUI and the Cluster Resource Services GUI have been removed from the IBM PowerHA SystemMirror for i product. You can continue to configure and manage your high availability environment using the PowerHA GUI.
IBM i 7.2 will be the last release that supports the IOP switching technology (sometimes referred to as switched disk technology). Support will be dropped in the next release of IBM i. This technology is part of the IBM i operating system, with user interfaces in the IBMPowerHASystemMirror for i product (5770-HAS). IOP switching was used primarily by customers with internal disk who wanted two IBM i partitions but only one copy of the independent auxiliary storage pool (IASP). Customers still on internal disk have the option of either synchronous or asynchronous geographic mirroring, which replicates the data from one IASP to a backup copy. Customers using external storage can use PowerHA's LUN switching technology which will remain fully supported, as well as the other replication technologies available on external storage. Once customers have upgraded to the next release of IBM i, it will no longer be possible to configure or manage an IOP switching environment.
HMC dropping support of Common Information Model (CIM)
The Hardware Monitor Console (HMC) is being updated to replace the existing Common Information Model (CIM) server with a new representational state transfer (REST) server. HMC V8R8.5.0 is the last version of HMC to support the CIM server, and is the first version of HMC to support all REST server. IBM® PowerHA® for i enhanced advanced node failure detection to support a new REST server through a new function PowerHA PTFs. PTFs have been provided for 7.1 and 7.2 PowerHA LP. See High Availability in Knowledge Center for more information.
Link for High Availability: http://www-03preprod.ibm.com/support/knowledgecenter/ssw_ibm_i_72/rzahg/rzahgha.htm