NSs Snapshots
NSs snapshots are temporary snapshots that have NSs-* prepended to the snapshot name.
These snapshots are commonly created in the following scenarios:
- Volume-level restores
- Volume size increase
- Volume size decrease
- VSS related snapshot operations
Normally, NSs snapshots are set to offline; however, the snapshots might appear online if the process using them did not complete successfully.
In rare cases, and more commonly in legacy code, if an unexpected failure occurs that prevents NSs snapshots from being cleaned up, you might see an NSs snapshot left online even though there are no running back end processes that leverage the snapshot.
NSs snapshots are usually renamed upon successful backup to meet the normal snapshot-naming scheme; however, if a third-party backup requester calls our provider, this could cause the snapshot to retain the NSs-* name.
Note: NSs snapshots taken with array-side volume
activities are considered unmanaged snapshots; once the snapshots are no longer
needed, they can be cleaned up manually.