After you create or modify a snapshot retention policy, QTS applies the new policy to existing snapshots. If the new policy is more restrictive than the previous policy, for example changing from Keep for: 5 days to Keep for: 2 days, then QTS deletes existing snapshots to conform with the new policy.
The Snapshot Manager window opens.
The Snapshot Settings window opens.
Snapshot Retention Policy |
UI Label |
Description |
---|---|---|
Time-based |
Keep for |
Keep each snapshot for the specified length of time. |
Fixed number |
Keep the specified number of snapshots |
Keep a fixed maximum number of snapshots on the NAS. After the maximum number is reached, QTS deletes the oldest snapshot when taking a new snapshot. |
Smart versioning |
Smart versioning |
Keep a snapshot created during a time period for a specified length of time. Examples:
Important:
The maximum number of snapshots for all time periods combined is 256. |