Hi Giulio,
Before running unlock_entity.sh, let's try to find if there's any task in progress.
Is there any hint on the events in the UI?
Or try to run [1]:
./taskcleaner.sh -o  

Also, you can verify what entities are locked [2]:
./unlock_entity.sh -q -t all -c

[1] https://github.com/oVirt/ovirt-engine/blob/master/packaging/setup/dbutils/taskcleaner.sh
[2] https://github.com/oVirt/ovirt-engine/blob/master/packaging/setup/dbutils/unlock_entity.sh

Shani Leviim

On Wed, Feb 3, 2021 at 10:43 AM Giulio Casella <giulio@di.unimi.it> wrote:
Since yesterday I found a couple VMs with locked disk. I don't know the
reason, I suspect some interaction made by our backup system (vprotect,
snapshot based), despite it's working for more than a year.

I'd give a chance to unlock_entity.sh script, but it reports:

CAUTION, this operation may lead to data corruption and should be used
with care. Please contact support prior to running this command

Do you think I should trust? Is it safe? VMs are in production...

My manager is (CentOS stream 8), hosts are oVirt Node 4.4.4

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