I just set cluster.min-free-disk to 1%:
# gluster volume info data
Volume Name: data
Volume ID: 2d3ea533-aca3-41c4-8cb6-239fe4f82bc3
Snapshot Count: 0
Number of Bricks: 1
But still get the same error: Error while executing action: Cannot move Virtual Disk. Low disk space on Storage Domain
I restarted the glusterfs volume.
But I can not do anything with the VM disk.
I know that filling the bricks is very bad, we lost access to the VM. I think there should be a mechanism to prevent stopping the VM.
we should continue to have access to the VM to free some space.
If you have a VM with a Thin Provision disk, if the VM fills the entire disk, we got the same problem.
De: "Strahil Nikolov" <email@example.com>
Para: "users" <firstname.lastname@example.org>, email@example.com
Enviadas: Segunda-feira, 21 De Setembro de 2020 21:28:10
Assunto: Re: [ovirt-users] Gluster Domain Storage full
Usually gluster has a 10% reserver defined in 'cluster.min-free-disk' volume option.
You can power off the VM , then set cluster.min-free-disk
to 1% and immediately move any of the VM's disks to another storage domain.
Keep in mind that filling your bricks is bad and if you eat that reserve , the only option would be to try to export the VM as OVA and then wipe from current storage and import in a bigger storage domain.
Of course it would be more sensible to just expand the gluster volume (either scale-up the bricks -> add more disks, or scale-out -> adding more servers with disks on them), but I guess that is not an option - right ?
В понеделник, 21 септември 2020 г., 15:58:01 Гринуич+3, firstname.lastname@example.org <email@example.com> написа:
I'm running oVirt Version 18.104.22.168-1.el7.
I have a small GlusterFS Domain storage brick on a dedicated filesystem serving only one VM.
The VM filled all the Domain storage.
The Linux filesystem has 4.1G available and 100% used, the mounted brick has 0GB available and 100% used
I can not do anything with this disk, for example, if I try to move it to another Gluster Domain Storage get the message:
Error while executing action: Cannot move Virtual Disk. Low disk space on Storage Domain
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