[Linux-cluster] XEN Cluster

[amrossi at linux.it]

But is it really necessary to do a cluster with 2/3/4 dom0?

can i use standalone fence_xvmd daemon?



> Lon Hohberger pisze:
>> On Mon, 2007-12-17 at 11:33 +0100, amrossi at linux.it wrote:
>>
>>> Ok...but i've 2 hosts (domain-0)... is it different?
>>>
>>
>> Not really, except that if you plan to do migration, you must have:
>>
>>  * the images on shared storage (e.g. GFS or raw partitions), and
>>  * fencing for the dom0 cluster.
>>
>
> So, if I have 2 hosts (physical servers) with 6 virtual XEN instances on
> each and I want use one virtual machine from first host and one virtual
> machine from second host as two-node cluster it can generate a lot of
> problems.
>
> 1. I have to make two node cluster using fence_xvm as fencing method on
> XEN machines
> 2. I have to make two node dom0 cluster and using some type of fencing
> (ilo, power, etc...)
> am I right ?
>
> So, when one of dom0 machine start to think that second node (second
> dom0 machine) is dead the one will start to fencing procedure and
> killing second dom0 machine, so it will reboot not only XEN node but
> also any of XEN machines on the physical  computer  (dom0 machine).
>
> If I understand it in good way, it a little bit stupid for me :/
>
> regards
> Darek
>
>
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