Hi Demeter,

my guess is that you have a linux system running there.
Usually even in a SAN-based environement , we keep our Bare-Metal Hosts with LUNs no bigger than 2 TB.

Picking 16TB as a single disk is a poor choice and I would recommend you to do a "pvmove" on the OS to smaller disks .

Best Regards,
Strahil Nikolov

В неделя, 12 януари 2020 г., 18:04:18 ч. Гринуич+2, Pavel Bar <pbar@redhat.com> написа:


Hi,
Can you please provide more details?
1) Origin domain type.
2) Destination domain type & size.
3) Was VM up or not? Live Migration?
4) Engine logs if you have.

Thanks!

Pavel


On Thu, Jan 9, 2020 at 12:29 PM Demeter Tibor <tdemeter@itsmart.hu> wrote:
Dear Users,

I have exactly same problem.
When I trying to migrate a big (16 TB) disk image to an another storage domain, i've got this error message:

Error while executing action: Cannot move Virtual Disk. Low disk space on Storage Domain Backup.


But I have a lot of space...

Ovirt 4.3.7

Please help me what can I do?

Regards,

Tibor


----- 2019. nov.. 13., 11:11, <suporte@logicworks.pt> írta:
The update fixes the issue.

Thanks


De: "Benny Zlotnik" <bzlotnik@redhat.com>
Para: suporte@logicworks.pt
Cc: "users" <users@ovirt.org>
Enviadas: Terça-feira, 12 De Novembro de 2019 11:48:47
Assunto: Re: [ovirt-users] Low disk space on Storage

This was fixed in 4.3.6, I suggest upgrading

On Tue, Nov 12, 2019 at 12:45 PM <suporte@logicworks.pt> wrote:
>
> Hi,
>
> I'm running ovirt Version:4.3.4.3-1.el7
> My filesystem disk has 30 GB free space.
> Cannot start a VM due to an I/O error storage.
> When tryng to move the disk to another storage domain get this error:
> Error while executing action: Cannot move Virtual Disk. Low disk space on Storage Domain DATA4.
>
> The sum of pre-allocated disk is the total of the storage domain disk.
>
> Any idea what can I do to move a disk to other storage domain?
>
> Many thanks
>
> --
> ________________________________
> Jose Ferradeira
> http://www.logicworks.pt
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