[Users] Fencing virtual machines

[René Koch (ovido)]

On Fri, 2013-11-08 at 08:49 +0100, Nicolas Ecarnot wrote:
> Le 08/11/2013 08:23, Eli Mesika a écrit :
> >
> >
> > ----- Original Message -----
> >> From: "Mike Burns" <mburns at redhat.com>
> >> To: "Nicolas Ecarnot" <nicolas at ecarnot.net>, users at ovirt.org
> >> Sent: Thursday, November 7, 2013 4:10:36 PM
> >> Subject: Re: [Users] Fencing virtual machines
> >>
> >> On 11/07/2013 09:03 AM, Nicolas Ecarnot wrote:
> >>> Hi,
> >>>
> >>> In the case I want to setup a virtual cluster amongst many virtual
> >>> machines, and this virtual cluster needs to fence some VM, what is the
> >>> best way to achieve this?
> >>>
> >>> I guess this has to use something like vdsClient to "unplug" the VM, but
> >>> I found it hard to find any more information about this.
> >>>
> >>
> >> I haven't tried but the fence-agents package (fence-agents-rhevm on
> >> Fedora) has a fence_rhevm tool that will probably work for you.
> >
> > Please let us know if that worked for you.
> 
> Thank you all for your answer. I installed it and began to try to play 
> with it, and it seems to be EXACTLY what I was looking for.
> 
> It's still not clear for me to see what I have to install on the 
> "stonith" targets - or who is eventually in charge of applying the kill 
> action (the manager, one node, any node ?) but I promise I'm still 
> reading and testing on my own.


Your vms are killed/restarted by ovirt-engine using the REST-API (on
behalf of one of the cluster members of course). So you don't have to
install anything except the fence-agents on all your cluster members
(vms) and make sure they can reach port 443 (or 8443 depending on your
setup) of ovirt-engine...


Regards,
René


> 
> Thank you, have a nice day.
>