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.

----- Original Message ----- > From: "Mike Burns" <mburns(a)redhat.com&gt; > To: "Nicolas Ecarnot" <nicolas(a)ecarnot.net&gt;, users(a)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.

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(a)redhat.com&gt; >>> To: "Nicolas Ecarnot" <nicolas(a)ecarnot.net&gt;, users(a)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. >