redundant network link - i trust you were referring to ethernet bonding. On Sun, Mar 13, 2011 at 1:19 PM, Ian Hayes <[email protected]> wrote:
> On Sat, Mar 12, 2011 at 11:19 PM, Parvez Shaikh <[email protected] > > wrote: > >> Hi all, >> >> I have a question pertaining to two node cluster, I have RHEL 5.5 and >> cluster along with it which at least should have two nodes. >> >> In a situation where both nodes of the cluster are up, and have reliable >> connection to fencing device (e.g. power switch OR any other power fencing >> device) and heartbeat link between two nodes goes down. >> >> Each node finds another node is down (because heartbeat IP becomes >> unreachable) and tries to fence each other. >> >> Is this situation possible? If so, can two nodes possibly fence (in short >> shutdown or reboot) each other? Is there anyway out of this situation? >> > > This is a fairly common problem called "split brain". The two nodes will go > into a shootout, fencing each other. There are a few ways to prevent this, > such as redundant network links and the use of quorum disks. > > > -- > Linux-cluster mailing list > [email protected] > https://www.redhat.com/mailman/listinfo/linux-cluster >
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