AFM-based Asynchronous Disaster Recovery features

The following AFM features are offered on AFM DR filesets:

• Force flushing contents before Async Delay
• Parallel data transfers
• Peer snapshot - psnap
• Gateway node failure and recovery
• Operation with disconnected secondary
• Using IBM Spectrum Protect™ for Space Management (HSM)
• Disabling AFM DR
• Using AFM DR with encryption
• Stop and start replication on a fileset

You can use mmbackup command to back up all files from primary, as all files are in a cached state on the primary fileset. Similar to AFM filesets, IBM Spectrum Protect (HSM) can be connected to primary or secondary, or both sides. When HSM is connected to the primary side, set AFMSKIPUNCACHEDFILES yes in dsm.sys file. AFM features such as revalidation, eviction, prefetch, partial file caching, expiration, resynchronization, failover, and showing home snapshots are not offered on AFM DR filesets.