[Pacemaker] clusters on virtualised platforms

[Digimer]

Don't confuse quorum and fencing (stonith), they serve different 
purposes. Basically, quorum is useful when things are working, fencing 
is required when things go wrong. So regardless of quorum disk, you 
still need to be able to fence. This requires that each VM be able to 
call the hypervisor and force a power off.

Generally speaking, VM-based cluster nodes are good for learning, but 
not production. It adds a layer that isn't needed and in HA, simple 
should trump all else.

digimer

On 17/07/14 12:48 PM, Alex Samad - Yieldbroker wrote:
> Hi
>
> I wonder if there Best practise or how to, on how to run clusters on say VMWare.
>
> I have built a 2 node cluster with 2 vm's I am hesitant to give rights to each machine to restart the other node. Plus I would have to install the vmware lib and....
>
> So what do other people do
>
> Quick search gives me
> http://www.hastexo.com/resources/hints-and-kinks/fencing-vmware-virtualized-pacemaker-nodes << But I am not keen on doing that ..
>
> I am working on centos 6.5
>
>
> Can I use a network resource to make quorum, ie Can the node can ping the dgw ?
>
> Thanks
>
>
>
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-- 
Digimer
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