[PVE-User] Hot resize of Windows virtio disks ?

Gilberto Nunes gilberto.nunes32 at gmail.com
Tue Jul 15 13:11:59 CEST 2014


Hi
Did you tried to change the SCSI Type to VIRTIO??
I did it before and work fine... It's a VM running Windows 2021...


2014-07-15 6:01 GMT-03:00 Gilou <contact+dev at gilouweb.com>:

> Le 15/07/2014 10:33, Alexandre DERUMIER a écrit :
>
>  Hi,
>>
>>  I'm not trying to make it work, I can see why it doesn't. I would like
>>>> to know the reason for having it disabled, if there's one still
>>>> standing. And have the condition altered if there's no reason to keep
>>>> it ;)
>>>>
>>>
>>
>> I need to make a patch to enable resize of virtio0 disk.
>>
>> It was disabled  because of a bug in previous virtio drivers. (only for
>> the c:\, boot disk),
>> giving instant bluescreen.
>>
>
>
> Hi,
>
> If so, I indeed would like more information on that bug. However, I can
> successfully resize C:\ disks on Windows 2008 R2 & Windows 2012, Windows
> 2012 R2 using the latest virtio drivers, so I guess it was fixed, or I just
> didn't hit it...
>
> Cheers
>
> Gilles
>
>
>>
>>
>>
>> ----- Mail original -----
>>
>> De: "Gilou" <contact+dev at gilouweb.com>
>> Cc: pve-user at pve.proxmox.com
>> Envoyé: Mercredi 9 Juillet 2014 23:10:33
>> Objet: Re: [PVE-User] Hot resize of Windows virtio disks ?
>>
>> Le 09/07/2014 21:04, Gilberto Nunes a écrit :
>>
>>> Hi again
>>>
>>> First, I thing that I cannot resize the VM disk on-line, because I used
>>> an out of date Virtio Drive..
>>> So, I install a new VM with Windows 2012 using last Virtio Drive and
>>> still can't resize a disk with an online VM!...
>>>
>>> Is there some bug with Virtio Driver or Qemu?? I'm using
>>> Virtio-Win-0.1-81.iso...
>>>
>> ,
>>
>> Hi
>> The web interface tells you that you can't.. But if you tell Proxmox
>> it's Linux inside instead of Windows (or you can also remove the disk,
>> qemu-img resize it, then add it back, then issue block_resize
>> disk-virtio0 blabla in the monitor), it'll allow the change and Windows
>> will work fine with it, afaict.
>>
>> I'm not trying to make it work, I can see why it doesn't. I would like
>> to know the reason for having it disabled, if there's one still
>> standing. And have the condition altered if there's no reason to keep it
>> ;)
>>
>> Cheers
>>
>> Gilles
>>
>>
>>> Thanks
>>>
>>>
>>> 2014-07-09 11:50 GMT-03:00 Gilou <contact+dev at gilouweb.com
>>> <mailto:contact+dev at gilouweb.com>>:
>>>
>>> Le 09/07/2014 16:36, Gilberto Nunes a écrit :
>>>
>>> Hello
>>>
>>> I have tried here too and get the same error...
>>>
>>>
>>> The code doesn't lie, if you put your OS type to linux, it'll work
>>> (or change the .pm file, and restart pvedaemon, but you might not
>>> want to do this ;))
>>>
>>> Cheers,
>>>
>>> Gilles
>>>
>>>
>>>
>>>
>>>
>>> 2014-07-09 11:25 GMT-03:00 Eneko Lacunza <elacunza at binovo.es
>>> <mailto:elacunza at binovo.es>
>>> <mailto:elacunza at binovo.es <mailto:elacunza at binovo.es>>>:
>>>
>>>
>>> Hi,
>>>
>>> I just tested this on a test cluster, and got the same
>>> error. If the
>>> VM is stopped, it works OK. If <vmid>.conf has hotplug: 1
>>> doesn't
>>> work either.
>>> root at pmx1:/etc/pve/nodes/pmx2# pveversion -v
>>> proxmox-ve-2.6.32: 3.2-129 (running kernel: 2.6.32-30-pve)
>>> pve-manager: 3.2-4 (running version: 3.2-4/e24a91c1)
>>> pve-kernel-2.6.32-30-pve: 2.6.32-130
>>> pve-kernel-2.6.32-29-pve: 2.6.32-126
>>> lvm2: 2.02.98-pve4
>>> clvm: 2.02.98-pve4
>>> corosync-pve: 1.4.5-1
>>> openais-pve: 1.1.4-3
>>> libqb0: 0.11.1-2
>>> redhat-cluster-pve: 3.2.0-2
>>> resource-agents-pve: 3.9.2-4
>>> fence-agents-pve: 4.0.5-1
>>> pve-cluster: 3.0-12
>>> qemu-server: 3.1-16
>>> pve-firmware: 1.1-3
>>> libpve-common-perl: 3.0-18
>>> libpve-access-control: 3.0-11
>>> libpve-storage-perl: 3.0-19
>>> pve-libspice-server1: 0.12.4-3
>>> vncterm: 1.1-6
>>> vzctl: 4.0-1pve5
>>> vzprocps: 2.0.11-2
>>> vzquota: 3.1-2
>>> pve-qemu-kvm: 1.7-8
>>> ksm-control-daemon: 1.1-1
>>> glusterfs-client: 3.4.2-1
>>>
>>>
>>>
>>>
>>> On 09/07/14 16:02, Gilou wrote:
>>>
>>> Hi,
>>>
>>> I'm new on the list, so if you think this shouldn't be
>>> posted
>>> here, feel free to direct me elsewhere.
>>>
>>> I tried to resize a disk on Windows 2012/2008, and I
>>> got this error :
>>> you can't online resize a virtio windows bootdisk
>>>
>>> Why not ? It seems to be fully supported on 2008 &
>>> 2012, so I
>>> wonder if I missed some incompatibility that would blow
>>> out at my
>>> face..
>>>
>>> Code is in API2/Qemu.pm:2643 (in 3.2-129)
>>> die "you can't online resize a virtio
>>> windows bootdisk\n"
>>> if
>>> PVE::QemuServer::check___running($vmid) &&
>>> $conf->{bootdisk} eq $disk && $conf->{ostype} =~ m/^w/
>>> && $disk =~
>>> m/^virtio/;
>>>
>>> I would say something like $conf->{ostype} =~ m/^w[^i]/
>>> to only
>>> match pre-2008 windows, that most likely won't like
>>> this kind of
>>> resizing (Or let Proxmox believe it's Linux, but I
>>> guess that
>>> would have other implications, maybe).
>>>
>>>
>>> Regards,
>>>
>>> Gilles
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>>>
>>
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-- 
Gilberto Ferreira
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