Dell Storage Manager 2020 R1 Administrator's Guide

NAS Volume Clone Restrictions

The following restrictions exist with clone NAS volumes:

• You cannot create a clone NAS volume of a clone NAS volume (nested clones) unless a clone NAS volume is replicated to another FluidFS cluster and then cloned.
• You cannot delete a base volume until all of its clone NAS volumes have been deleted.
• A snapshot cannot be deleted as long as clone NAS volumes are based on it.
• Restoring to an older snapshot fails if it would result in a base snapshot being deleted.
• You can replicate a clone NAS volume only after the base volume is replicated. If the base snapshot in the base volume is removed, and a clone NAS volume exists on the replication target FluidFS cluster, replication between NAS volumes will stop. To resume replication, the cloned NAS volume on the target FluidFS cluster must be deleted.
• You cannot create a clone NAS volume from a replication source NAS volume snapshot (a snapshot with a name starting with rep_) or NDMP snapshot. However, you can create a clone NAS volume of a replication target NAS volume.
• Before creating a clone NAS volume, data reduction and the snapshot space consumption threshold alert must be disabled on the base volume (previously deduplicated data is allowed).
• Data reduction cannot be enabled on a clone NAS volume.
• After a NAS volume is cloned, data reduction cannot be reenabled until all clone NAS volumes have been deleted.
• A clone NAS volume contains user and group recovery information, but not the NAS volume configuration.
• Clone NAS volumes count toward the total number of NAS volumes in the FluidFS cluster.