Hi all, It seems live snapshot is available in the Fedora 17 qemu-kvm. On my laptop with kvm, virt-manager, libvirt, virsh etc. I created a virtual machine and tried to make a live snapshot: virsh -c qemu:///system Welcome to virsh, the virtualization interactive terminal. Type: 'help' for help with commands 'quit' to quit virsh # list Id Name State ---------------------------------------------------- 1 RHEL55_NTP running virsh # snapshot-create RHEL55_NTP Domain snapshot 1340871802 created virsh # snapshot-list RHEL55_NTP Name Creation Time State ------------------------------------------------------------ 1340871724 2012-06-28 10:22:04 +0200 running 1340871802 2012-06-28 10:23:22 +0200 running Both my laptop and the Virtio vdsm machine are using the same package: [root@kvm ~]# rpm -qf `which qemu-kvm` qemu-system-x86-1.0-17.fc17.x86_64 [wdh@laptop-winfried ~]$ rpm -qf `which qemu-kvm` qemu-system-x86-1.0-17.fc17.x86_64 Op 28-06-12 03:29, Itamar Heim schreef:
On 06/27/2012 10:47 AM, Winfried de Heiden wrote:
Hi all,
Trying to create an online (vm still running) fails; attachted is de vdsm logfile trying to create a live snapshot.
Some details:
hypervisor = Fedora 17 + vdsm, all the latest updates etc.
[root@kvm vdsm]# rpm -qi vdsm Name : vdsm Version : 4.10.0 Release : 2.fc17 Architecture: x86_64 Install Date: wo 27 jun 2012 12:08:20 CEST Group : Applications/System Size : 2425943 License : GPLv2+ Signature : (none) Source RPM : vdsm-4.10.0-2.fc17.src.rpm Build Date : vr 22 jun 2012 12:52:54 CEST Build Host : x86-11.phx2.fedoraproject.org Relocations : (not relocatable) Packager : Fedora Project Vendor : Fedora Project URL : http://www.ovirt.org/wiki/Vdsm Summary : Virtual Desktop Server Manager Description : The VDSM service is required by a Virtualization Manager to manage the Linux hosts. VDSM manages and monitors the host's storage, memory and networks as well as virtual machine creation, other host administration tasks, statistics gathering, and log collection.
BTL, sanlock is disabled in qemu.conf (#lock_manager="sanlock"), I cannot install a vm when it's enabled. Is that related?
this is the relevant error coming from libvirt. maybe fedora 17 qemu-kvm does not have live snapshot support?
Thread-306::ERROR::2012-06-27 12:46:40,178::libvirtvm::1782::vm.Vm::(snapshot) vmId=`ef978066-09c8-40aa-8e0b-4accfacc15bd`::Unable to take snapshot Traceback (most recent call last): File "/usr/share/vdsm/libvirtvm.py", line 1780, in snapshot libvirt.VIR_DOMAIN_SNAPSHOT_CREATE_REUSE_EXT)) File "/usr/share/vdsm/libvirtvm.py", line 491, in f ret = attr(*args, **kwargs) File "/usr/lib/python2.7/site-packages/vdsm/libvirtconnection.py", line 82, in wrapper ret = f(*args, **kwargs) File "/usr/lib64/python2.7/site-packages/libvirt.py", line 1443, in snapshotCreateXML if ret is None:raise libvirtError('virDomainSnapshotCreateXML() failed', dom=self) libvirtError: unsupported configuration: reuse is not supported with this QEMU binary