Is deleting snapshots before reverting a recommendation or a mandatory requirement
Applies to
- Upgrade/Revert
- ONTAP 9
- Snapshots
Answer
- All snapshots created after upgrading ONTAP to your current version must be deleted before reverting
- See snapshots tagged with versions:
Cluster01::*> snapshot show -fs-version 9.15
---Blocks---
Vserver Volume Snapshot Size Total% Used%
-------- -------- ------------------------------------- -------- ------ -----
Cluster01 vol0
hourly.1 12.86MB 0% 0%
hourly.0 2.30GB 0% 7%
nightly.0 17.58MB 0% 0%
3 entries were displayed.
Additional Information
- The Pre-revert tasks required for your ONTAP version need to be done otherwise it could lead to ONTAP Revert failure:
- Prepare Snapshots before reverting an ONTAP cluster
- Pre-revert tasks required for your ONTAP version
- System verifications to perform before you revert an ONTAP cluster
- Resources to review before you revert an ONTAP cluster
- ONTAP revert issues and limitations
- Supported ONTAP revert paths
- Revert an ONTAP cluster
