High availability function in the base operating system

Some cluster CL commands and all Cluster APIs exist in the base IBM® i.

Cluster commands

The following cluster commands will remain in QSYS for debugging purposes and for deleting cluster-related objects:

Delete Cluster Resource Group (DLTCRG) command
Dump Cluster Trace (DMPCLUTRC) command
Change Cluster Recovery (CHGCLURCY) command
Start Clustered Hash Table Server (STRCHTSVR) command
End Clustered Hash Table Server (ENDCHTSVR) command

Cluster APIs

You can write your own custom application to configure and manage your cluster by using Cluster APIs. These APIs take advantage of the technology provided by cluster resource services provided as a part of IBM i. New enhanced functions are included in the IBM PowerHA® SystemMirror® for i commands which are provided by the IBM PowerHA SystemMirror for i licensed program.