Hello everyone,
my Qnap TS-h973ax with QTS-h5.2.8.3359 is facing a similar problem.
So far, I have NOT created any snapshots myself, but have left everything to the GUI automations, which also created/deleted snapshots there.
The issue now is that NO ZFS snapshots are displayed on ANY ZFS volume in the GUI.
However, at the console, a simple “zfs list -t snapshot | wc -l” returns 194.
Support is providing the standard ZFS commands:
zfs destroy zpool1/zfs21@snapshot47902
or to delete them all at once:
zfs list -t snapshot -o name | grep zpool1/zfs21@ | xargs -n1 zfs destroy
BUT:
every attempt to delete is answered with
cannot destroy snapshots: permission denied
The problem now is that there are 1.9TB on a ZFS volume, but zfs list already shows over 5.9T.
So it seems I am affected by the same problem, but WITHOUT having created snapshots myself at the console.
Best regards,
Thomas