[libvirt] save/ restore a domain with kvm
Zvi Dubitzky
DUBI at il.ibm.com
Mon Mar 23 13:18:24 UTC 2009
Forgot to say: I am working with kvm-72
Does that have implication on the correctness of the save/restore of VM
state ?
Zvi Dubitzky
Virtualization and System Architecture Email:dubi at il.ibm.com
IBM Haifa Research Laboratory Phone: +972-4-8296182
Haifa, 31905, ISRAEL
"Daniel P. Berrange" <berrange at redhat.com>
23/03/2009 11:36
Please respond to
"Daniel P. Berrange" <berrange at redhat.com>
To
Zvi Dubitzky/Haifa/IBM at IBMIL
cc
libvir-list at redhat.com
Subject
Re: [libvirt] save/ restore a domain with kvm
On Sun, Mar 22, 2009 at 08:04:17PM +0200, Zvi Dubitzky wrote:
> I am working with virsh
>
> The version of VIRSH as it shows is :
> virsh # version
> Compiled against library: libvir 0.4.4
> Using library: libvir 0.4.4
> Using API: QEMU 0.4.4
> Running hypervisor: QEMU 0.9.1
>
> Under virsh I do the following :
> 1. suspend a running VM
> 2. save it to a file with the 'save' command
> 3. restore the saved domain file with the 'restore' command while the
> domain is still in the suspend mode
> or after it was shutdown/destroyed (not seen with 'list --all)
> In either case I get the error message saying :
>
> virsh # restore /home/dubi/xml/vm_dubi2.sav
> libvir: QEMU error : operation failed: failed to start VM
> error: Failed to restore domain from /home/dubi/xml/vm_dubi2.xml
>
> Any idea what is the failure reason ?
Check the /var/log/libvirt/qemu/$HOME.log file for more information from
QEMU
Daniel
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