[ovirt-users] Resize disk of powered on VM

[Idan Shaby]

On Mon, Oct 16, 2017 at 4:19 PM, Gianluca Cecchi <gianluca.cecchi at gmail.com>
wrote:

> Hello,
> I'm in 4.1.6.
> I have a VM with 2 virtio-scsi disks (on FC).
> If I try to do a resize of the boot disk (preallocated) from this menu:
> 1)
> - select VM
> - disks sub tab
> - select disk
> - edit
> - edit virtual disk window
> - extend size by X Gb
> I get error about "not all VMs are powered down"
>
>
> Instead if I do a resize of the same disk from this menu:
> 2)
> - select VM
> - edit VM
> - find the line of the disk and select the "edit" button at the right
> - edit virtual disk window
> - extend size by X Gb
> it works as expected, so without downtime
>
> Is this expected?
>
> Actually after 2) scenario, I had retried 1) and it works too this time.
> During the first 1) that failed, I see this in engine.log:
>
>  Validation of action 'UpdateVmDisk' failed for user admin at internal-authz.
> Reasons: VAR__AC
> TION__UPDATE,VAR__TYPE__DISK,ACTION_TYPE_FAILED_VM_IS_NOT_DOWN
>
> But the VM is indeed up on all 3 attempts.... so I don't understand this
> message
>
Unfortunately I couldn't reproduce neither of the scenarios in my 4.1.6
environment.
Are you still able to reproduce it? If you are, can you please attach full
engine and vdsm logs?

>
> On another VM, again with a disk configured as virtio-scsi, but configured
> as thin provisioned, both from 1) and 2) scenario I get:
>
> c7service:
>
>    - Cannot edit Virtual Disk. Cannot edit Virtual Disk. Disk extension
>    combined with disk compat version update isn't supported. Please perform
>    the updates separately.
>
> What does it mean "perform the updates separately"? I cannot online resize
> thin provisioned disks?
> The VM has only one disk, BTW.
>
Maybe you somehow tried to updated the QCOW version of the disk?
Maor, any idea why he got this message?

>
> Thanks,
> Gianluca
>
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>
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