HACMP Cluster (AIX)

• The HACMP Cluster software supports both active-passive and active-active configurations.
• In AIX, the SCSI reservation command is sent when opening the device, and the default mode is to send a SCSI reservation. It needs to be disabled for active-active configurations.
• Since on AIX everything is done using LVM, there is tight integration between logical volumes configuration and cluster configuration.

Originally written by guy keren