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Re: [Linux-cluster] Forcing off KVM Windows guests from rgmanager



Hello Digmer,

We are working on a similer project,  only:
EL6 / pcmk+cman (for dlm and fenced)
No rgmanager since we will be using pacemaker
KVM

Could you kindly share some whitepapers that
you have been using for your setup? Documentation
for things like live migration, fenching the VMs etc..?
PLEASE!

Thanks in Advance,

Nick.



On Tue, Nov 1, 2011 at 12:54 AM, Digimer <linux alteeve com> wrote:
> Hi all,
>
>  I've run into something of a corner case;
>
> EL6 / cman 3
> rgmanager
> KVM VMs
> Win2008 R2 guest
>
> I want to allow my UPS to shut down my cluster when the batteries are
> about to fail.
>
> The problem with this is that when I try to stop rgmanager (or even
> simply disabling the VM resource), an application on the windows KVM
> guest pops up a "Are you sure you want to close X?". This blocks the VMs
> shutdown, which leaves rgmanager sitting there indefinitely waiting for
> the guest VM to stop and nothing actually shuts down until the batteries
> drain.
>
> The application in question does not have a "don't prompt me" option, so
> I need one of;
> * A way to either tell the windows guest to forcibly stop to process.
> * A way to have rgmanager pause and write out to disk the state of a VM.
> * A way to 'virsh destory' a guest as a special kind of 'clusvcadm -d
> ...' call.
>
> I'm using the virtio drivers, which I believe (perhaps wrongly) provides
> the ACPI hook to start the guest VM.
>
> Any suggestions/ideas? Anything has to be better than waiting and
> letting the whole cluster hard power off.
>
> --
> Digimer
> E-Mail:              digimer alteeve com
> Freenode handle:     digimer
> Papers and Projects: http://alteeve.com
> Node Assassin:       http://nodeassassin.org
> "omg my singularity battery is dead again.
> stupid hawking radiation." - epitron
>
> --
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>


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