[one-users] libvirt persisent vs transient domains

Manikanta Kattamuri mani.kattamuri at hexagrid.com
Thu Feb 17 19:42:54 PST 2011

Assume all this is set and the vm's automatically come up after the servers
get online.
would it not create more problems then solve as you one is not in sync with
all the vm states?.
If there are any monitoring tools configured based on one status, will
report failure.
Starting of the vms through oned will not succeed or cause disk corruption?


On Fri, Feb 18, 2011 at 4:03 AM, Shi Jin <jinzishuai at gmail.com> wrote:

> Hi there,
> Right now, all KVM (I think Xen too but I don't know it for sure) VMs are
> started as a transient libvirt domain using the "virsh create <xml>"
> command.
> There is nothing wrong with it but recently I had a facility wide power
> failure and all VMs running on the node are gone upon the server shutdown. I
> had to manually start all the domains that were running at the point of
> failure after power is resumed. Then I thought that if I put the VMs as
> libvirt autostart domains, they will be automatically started upon boot,
> which would save me a  lot of manual process. But to do that, I have to make
> the VMs persistent libvirt domains using the "virsh define" and "virsh
> start" commands in sequence instead of the single "virsh create".
> Is this a good idea? Comments welcome.
> Thanks.
> Shi
> --
> Shi Jin, Ph.D.
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> Users at lists.opennebula.org
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