[libvirt-users] Using qemu-kvm divre snapshot option

Hi, looking at the qemu-kvm man page, it is possible to enable snapshot for a given drive. This is what we need because we would like to start a domain with two drives, one on a file with snapshot=on and an other drive on LVM with snapshot=off. Unfortunately it seems that if you use libvirt the same option is not available when you define the domain with a XML file. I mean, I didn't find out a way to support the above use case. So, does libvirt support the drive snapshot option as qemu-kvm does ? [root@dom0-103-13-26-b libvirt-0.8.8]# cat /etc/issue Scientific Linux sl54_x86_64 [root@dom0-103-13-26-b libvirt-0.8.8]# rpm -qa | grep libvirt libvirt-0.6.3-20.1.el5_4.x86_64 libvirt-python-0.6.3-20.1.el5_4.x86_64 [root@dom0-103-13-26-b libvirt-0.8.8]# rpm -qa | grep qemu qemu-common-0.10.5-1.el5.2.x86_64 kvm-qemu-img-83-164.el5_5.21.x86_64 qemu-system-x86-0.10.5-1.el5.2.x86_64 Below you can find a copy of the XML where we would like to add somewhere the option snapshot <domain type='kvm'> <name>centos5_b</name> <uuid>a973d1d4-7af6-3f41-a3c1-bea958aba98b</uuid> <memory>524288</memory> <currentMemory>524288</currentMemory> <vcpu>1</vcpu> <os> <type arch='x86_64' machine='rhel5.4.0'>hvm</type> <boot dev='hd'/> </os> <features> <acpi/> <apic/> <pae/> </features> <clock offset='utc'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>restart</on_crash> <devices> <emulator>/usr/libexec/qemu-kvm</emulator> <disk type='file' device='disk'> <driver name='qemu' cache='none'/> <source file='/home/davide/WNoDeS/disks/centos5_b.raw'/> <target dev='vda' bus='virtio'> </disk> <disk type=block device='disk'> <source file='/dev/vg0/lv_slash'/> <target dev='vda' bus='virtio'> </disk> <disk type='file' device='cdrom'> <target dev='hdc' bus='ide'/> <readonly/> </disk> <interface type='bridge'> <mac address='00:16:36:36:70:3e'/> <source bridge='br0'/> <model type='virtio'/> </interface> <serial type='pty'> <target port='0'/> </serial> <console type='pty'> <target port='0'/> </console> <input type='mouse' bus='ps2'/> <graphics type='vnc' port='-1' autoport='yes' keymap='it'/> </devices> </domain> Thanks in advance Alessanndro ********************************************** Alessandro Italiano INFN-CNAF,Tier1 Farming Group Viale Berti Pichat 6/2, 40127 Bologna, Italy Tel: +39 051 6092751 alessandro.italiano(a)cnaf.infn.it www.cnaf.infn.it Skype#alessandroitaliano **********************************************