What is required for a volume group to be eligible for automatic Geographic Logical Volume Mirroring (GLVM) mirroring?

Scalable Volume Groups are the only VG type in AIX that can contain Remote Physical Volumes (RPVs), which are the virtual disk objects that GLVM uses to replicate data across geographically separated sites. Without being defined as a Scalable VG, the volume group cannot participate in the RPV client/server architecture that underpins all GLVM operations.

Cluster Aware AIX (CAA) provides cluster disk heartbeating and repository disk services for PowerHA and is not a prerequisite for GLVM volume group eligibility.

Concurrent-capable volume groups are designed for shared active/active disk access in PowerHA clusters and carry no relevance to GLVM geographic mirroring eligibility.

LVM mirror pools govern local mirroring placement policies within a single site and are not a requirement for enabling GLVM on a volume group.