HOW TO Remove snapshots of deleted VPS-s on the GR site
Navigate to SERVERware GUI → VPS section → Deleted VPS-s
Click on the deleted VPS and check the UUID at the bottom:
SSH to the host where snapshots are located and run:
zfs list | grep xxx
where xxx is the first part of UUI, for example f277531a in the screenshot above.
zfs destroy NETSTOR/GRS/site-dc43fbb2edd2d84a589abab3e30c73ad/vol-ed2cad48519d44678769dd6d0da17af2
You will get a message that you can not destroy a complete volume because sw-repl is holding the dependencies. You will need to release the each dependency from the specific volume with the command zfs release sw-repl.
zfs release sw-repl NETSTOR/GRS/site-dc43fbb2edd2d84a589abab3e30c73ad/vol-8ff6457f34cb4be790eb0c9c29022863@cycle-70ca0a480194e38800dfd70b4dbc6cb2
After removing all dependencies, run the zfs destroy command again and the volume should be removed.
To check what holds the volume, you can run:
zfs holds volume_name
The process is the same for VPS-s that are not deleted, where we would be checking the UUID on the VPS section.
To get the list of snapshots with name and the creation date run:
zfs list -t snapshot -o name,creation