[Linux-cluster] Two node cluster without quorum disk

[Mark Watts]

On Wednesday 22 April 2009 11:14:49 Ralph Zukeb wrote:
> 2009/4/22 Mrugesh Karnik <mrugeshkarnik at gmail.com>:
> > On Wednesday 22 Apr 2009 15:25:32 Ralph Zukeb wrote:
> >> Hello again! Thanks for the tips so far.
> >>
> >> How can I ensure that the node holding the services and resources in a
> >> two node cluster keeps holding them if the two nodes cannot see each
> >> other?
> >>
> >> I am not using a quorum disk.
> >
> > <cman two_nodes="1" expected_votes="1"/>
> >
> > Make sure you configure fencing properly though. Also, getting rid of the
> > two_node attribute requires a full cluster restart.
> >
> > Mrugesh
>
> I tried this, but when I killed the switch for the cluster traffic,
> BOTH nodes got fenced! Can I avoid this?

Don't kill the switch like that - you're causing a split brain.
Use two switches and multiple interfaces (bonding) to provide network 
redundancy.

Mark.


-- 
Mark Watts BSc RHCE MBCS
Senior Systems Engineer
QinetiQ Applied Technologies
GPG Key: http://www.linux-corner.info/mwatts.gpg
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 197 bytes
Desc: This is a digitally signed message part.
URL: <http://listman.redhat.com/archives/linux-cluster/attachments/20090422/c1477a61/attachment.sig>