Review the following Considerations before you use the Safe Snap (Immutable Snapshot) feature for Hitachi Vantara CCI Engine.
-
The clients, remote snap MediaAgents, and Access nodes must be on Innovation Release (11.38) or later.
-
You can only set days-based retention on the snapshot copies. Extended retention is not supported.
-
The maximum allowed retention is 512 days.
-
The snapshot immutability is not inherited by clones or mounts. Only the original snapshot is immutable.
-
If the snapshot primary copy is marked as immutable and a vault/replica copy exists, both copies will be marked as immutable. The retention periods for these copies can be different and independent of each other. However, it is also possible to make only the vault/replica copy immutable.
-
If the retention settings for the immutable snap copies are modified, existing snapshots will still adhere to their original retention, and only new snapshots will follow the new retention settings.