[Pacemaker] Heartbeat over Disk or non IP possible?

Dejan Muhamedagic dejanmm at fastmail.fm
Wed Apr 27 07:11:22 EDT 2011


On Wed, Apr 27, 2011 at 12:15:02PM +0200, Ulf wrote:
> Hi,
> I won't call it akademic curiosity.
> Let's say you have two rooms with a distance of 5km. In theory both network connections are completly independent, but in real live there are a lot of possible reasons, why they are not independent.
> It might be just a human errors or a technical problem like a running spanning tree.
> In theses cases it is very helpful to have a technical independent solution like heartbeat over fibre channel disk to avoid a split brain.

I think that you can run IP over fibre. Though I can't recall
anymore if I ever tried to use that or that somebody reported
using it here.

> I'd like to have the idepentend way to prevent a split brain situation.
> The network technology is one technology (even with redundant connections), so a potential SPoF. A disk heartbeat would add a second technology.

Would a quorum disk be an acceptable solution for you? That may
be easier to implement.



> Cheers,
> Ulf
> -- 
> NEU: FreePhone - kostenlos mobil telefonieren und surfen!			
> Jetzt informieren: http://www.gmx.net/de/go/freephone
> _______________________________________________
> Pacemaker mailing list: Pacemaker at oss.clusterlabs.org
> http://oss.clusterlabs.org/mailman/listinfo/pacemaker
> Project Home: http://www.clusterlabs.org
> Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
> Bugs: http://developerbugs.linux-foundation.org/enter_bug.cgi?product=Pacemaker

More information about the Pacemaker mailing list