[libvirt-users] virsh create snapshot not honoring diskspec?

[Silver Sky Soft Services, Inc.]

Hi,
I'm trying to create a snapshot on a specific disk by using diskspec
option. However, libvirt/virsh seems to ignore it and takes a snapshot of
all disks. Am I using this option incorrectly?

In below examples, I'm trying to snapshot only vdb. However even vda is
getting snapshotted regardless of diskspec. Is this a known issue?

I'm on CentOS 7.1, libvirtd (libvirt) 1.2.8, virsh 1.2.8

[root at localhost scripts]# virsh domblklist centos_nfs
Target     Source
------------------------------------------------
vda        /var/lib/libvirt/images/centos_nfs.SNAP_2015-08-07-081800
vdb        /var/lib/libvirt/images/centos_nfs_storage.SNAP_2015-08-07-081800
hdc        -

[root at localhost scripts]# virsh snapshot-create-as --domain centos_nfs
--name SNAP_2015-08-07-090909 --no-metadata --disk-only --atomic --diskspec
vdb,snapshot=external
Domain snapshot SNAP_2015-08-07-090909 created

[root at localhost scripts]# virsh domblklist centos_nfs
Target     Source
------------------------------------------------
vda        /var/lib/libvirt/images/centos_nfs.SNAP_2015-08-07-090909
vdb        /var/lib/libvirt/images/centos_nfs_storage.SNAP_2015-08-07-090909
hdc        -


[root at localhost scripts]# virsh snapshot-create-as --domain centos_nfs
--name SNAP_2015-08-07-101010 --no-metadata --disk-only --atomic --diskspec
vdb,snapshot=external,file=/var/lib/libvirt/images/centos_nfs_storage.SNAP_2015-08-07-101010
Domain snapshot SNAP_2015-08-07-101010 created

[root at localhost scripts]# virsh domblklist centos_nfs
Target     Source
------------------------------------------------
vda        /var/lib/libvirt/images/centos_nfs.SNAP_2015-08-07-101010
vdb        /var/lib/libvirt/images/centos_nfs_storage.SNAP_2015-08-07-101010
hdc        -

Thanks,
KiranK
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listman.redhat.com/archives/libvirt-users/attachments/20150807/9ddd6b61/attachment.htm>