[ovirt-users] Re: Thin Provisioned to Preallocated
In regular KVM thin disks can be made fully preallocated when you 'expand' them to
the predefined maximum size.
Usually I create a large file and then I delete it.
Something like this: 'dd if=/dev/zero of=/path/to/mounted/qcow2/disk/largefile bs=4M
status=progress ; rm -f /path/to/mounted/qcow2/disk/largefile
I doubt it's different in oVirt as backend is the same (KVM/qemu/raw or qcow2).
Best Regards,
Strahil Nikolov
На 9 август 2020 г. 10:15:26 GMT+03:00, Eyal Shenitzky <eshenitz(a)redhat.com>
написа:
>Hi Jorge,
>
>Currently, there is no mechanism for doing this operation on the disk,
>but
>there is workaround such as:
>
>- Export the VM as OVA or to an export domain and import it back with
>the
>needed allocation method.
>
>On Thu, 6 Aug 2020 at 17:36, Jorge Visentini <jorgevisentini(a)gmail.com>
>wrote:
>
>> Hi oVirt land.
>>
>> Can I convert the disks of Thin Provision to Preallocated?
>>
>> Best Regards.
>> --
>> Att,
>> Jorge Visentini
>> +55 55 98432-9868
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