[libvirt] Get disk size for disk type="network"
Eric Blake
eblake at redhat.com
Tue Mar 11 13:59:49 UTC 2014
On 03/10/2014 07:09 PM, Qiang Fu wrote:
> Hi,
>
> In the output of "virsh dumpxml" command the disk section is as follows:
>
> <disk type='network' device='disk'>
> <driver name='qemu' type='raw' cache='writeback'/>
> <auth username='svl-cc1-cinder-user'>
> <secret type='ceph' uuid='e80afa94-a64c-486c-9e34-d55e85f26406'/>
> </auth>
> <source protocol='rbd'
> name='svl-cc1-cinder-volume-1/volume-0a4cdeab-863d-4394-845f-008b993bc4e9'>
> <host name='10.34.114.211' port='6789'/>
> <host name='10.34.114.212' port='6789'/>
> <host name='10.34.114.213' port='6789'/>
> </source>
> <target dev='vda' bus='virtio'/>
> <serial>0a4cdeab-863d-4394-845f-008b993bc4e9</serial>
> <alias name='virtio-disk0'/>
> <address type='pci' domain='0x0000' bus='0x00' slot='0x04'
> function='0x0'/>
> </disk>
>
> In this case how can I use libvirt to get the disk/volume size information?
Have you tried 'virsh vol-dumpxml $vol', for an appropriate choice of
$vol? It may require creating an rbd storage pool first.
There's also 'virsh domblkinfo $dom vda', for obtaining information
about the vda disk associated with $dom.
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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