[Pacemaker] Lustre and Multiple Mount Protection

[Dejan Muhamedagic]

Hi,

On Tue, Dec 22, 2009 at 06:52:34PM +0100, Michael Schwartzkopff wrote:
> Hi,
> 
> The Lustre Filesystem uses a feature called Multiple Mount Protection to make 
> sure that one device is really only mounted by one node.
> 
> My question now: Is this feature really needed in a pacemaker cluster?
> 
> In a pacemaker cluster with correctly enables STONITH the cluster manager 
> takes care that the resource is only mounted on one node, isn't it? At least 
> in my understanding it should. Only after getting the positive feedback that 
> the resource was stopped on the other node or the other node was fenced 
> pacemaker starts the resource on the second node, or?

Right. But I guess you knew that.

Thanks,

Dejan

> Greetings,
> 
> 
> -- 
> Dr. Michael Schwartzkopff
> MultiNET Services GmbH
> Addresse: Bretonischer Ring 7; 85630 Grasbrunn; Germany
> Tel: +49 - 89 - 45 69 11 0
> Fax: +49 - 89 - 45 69 11 21
> mob: +49 - 174 - 343 28 75
> 
> mail: misch at multinet.de
> web: www.multinet.de
> 
> Sitz der Gesellschaft: 85630 Grasbrunn
> Registergericht: Amtsgericht München HRB 114375
> Geschäftsführer: Günter Jurgeneit, Hubert Martens
> 
> ---
> 
> PGP Fingerprint: F919 3919 FF12 ED5A 2801 DEA6 AA77 57A4 EDD8 979B
> Skype: misch42
> 
> _______________________________________________
> Pacemaker mailing list
> Pacemaker at oss.clusterlabs.org
> http://oss.clusterlabs.org/mailman/listinfo/pacemaker