[pve-devel] online resize of virtio-blk?

[Stefan Priebe]

Hello,

it works perfectly this way:

lvextend -L ${newsize}G /dev/pve/vm-100-disk-1

~# qm monitor 100
Entering Qemu Monitor for VM 100 - type 'help' for help
qm> block_resize drive-virtio0 30G
qm> quit

in VM:
dmesg shows:
[53925.713083] virtio_blk virtio0: new size: 62914560 512-byte logical 
blocks (32.2 GB/30.0 GiB)

Stefan
Am 29.07.2012 08:31, schrieb Alexandre DERUMIER:
> i'm not sure it's possible with virtio-blk.
>
> virtio-scsi seem to support it in qemu git.
>
> I'll make some tests today with .raw files to see what is possible.
>
>
>
> BTW, I would like to implement resize of volume in proxmox for the future, could you describe how to resize an lvm device ?
>
>
> ----- Mail original -----
>
> De: "Stefan Priebe" <s.priebe at profihost.ag>
> À: pve-devel at pve.proxmox.com
> Envoyé: Samedi 28 Juillet 2012 21:58:42
> Objet: [pve-devel] online resize of virtio-blk?
>
> Hello list,
>
> is online resizing of virtio blk devices supported? It seems Redhat
> itself supports it:
> https://bugzilla.redhat.com/show_bug.cgi?id=648594
>
> I've resized the LVM block device outside of the VM but inside the VM
> i've no idea how to get the new size.
>
> Stefan
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