- Data ONTAP operating in 7-Mode
- Data ONTAP 8
- ONTAP 9
The more the active file system changes and the longer Snapshot copies remain, the more space the copies consume. This is due to the fact that WAFL never overwrites a data block. If a file is modified, updated blocks are written to a new location. If data gets deleted from the active file system, old snapshot copies that contain that data will still point to those block, thus, space will not get freed up. Therefore, snapshots can become larger and grow beyond their snap reserve, thus, spilling into AFS (Active File System).
- Increase snap reserve
- Change the Snapshot retention rate
- Configure Snapshot autodelete
- Backup Snapshots to DR
- Snapshots; including SnapShot Issues and Solutions
- How does the Snapshot reserve work?
- How to view snapshots and determine the size of snapshots
- How to use Snapshot Autodelete
- Deleted snapshots rolling over to older snapshots
- Individual snapshot size doesn't match the DF output for that volume
- Snapshots size show 0KB in the command line and System Manager