[libvirt-users] KVM - full system ( disk+memory) snapshot by excluding the raw disks

Hi There , I have KVM VM with 4 qcow2 disks and 2 raw disks . when I try to take full system snapshot by excluding raw disks . it is give below error . can you help me how to fix this ?. or is it possible to take full system snapshot in this case .?. When I change XMl as internal snapshots for raw disks . It throws a message snapshot are not supported on war disks . [root@localhost oscgpkg-7eee963550ba9e5b]# virsh snapshot-create --domain oscg2 --xmlfile oscgsnapshot.xml error: unsupported configuration: disk 'vda' must use snapshot mode 'internal' [root@localhost oscgpkg-7eee963550ba9e5b]# [root@localhost oscgpkg-7eee963550ba9e5b]# cat oscgsnapshot.xml <domainsnapshot> <description>oscg snapshot</description> <memory snapshot='internal'/> <disks> <disk name='hda' snapshot='internal'> </disk> <disk name='hdb' snapshot='internal'> </disk> <disk name='hdc' snapshot='internal'> </disk> <disk name='hdd' snapshot='internal'> </disk> <disk name='vda' snapshot='no'> </disk> <disk name='vdb' snapshot='no'> </disk> </disks> </domainsnapshot>