The Veritas Storage Foundation High Availability stack supports VIO clients that use memory from the Active Memory Sharing (AMS) pool. Active Memory Sharing is a virtualization technology that allows multiple partitions to share a pool of physical memory. AMS increases system memory utilization and reduces the amount of physical memory that the system requires.

Symantec recommends that the ratio of the physical memory in the AMS pool should comply with the AIX guidelines.

See the IBM Redpaper PowerVM Virtualization Active Memory Sharing document for the AIX guidelines.