On Wed, Nov 18, 2009 at 06:32:25AM +0100, Fabio M. Di Nitto wrote: > > Apologies if a similar question has been asked in the past, any inputs, > > thoughts, or pointers welcome. > > Ideally you would find a way to plug the storage into the 2 nodes that > do not have it now, and then run qdisk on top. > > At that point you can also benefit from "global" failover of the > applications across all the nodes. > > Fabio Thanks for the reply and pointers, indeed the 4 nodes attached to storage with qdisk sounds best... I believe in the particular scenario above, 2 of the nodes don't have any HBA cards / attachment to storage. Maybe an IP tiebreaker would have to be introduced if storage connections could not be obtained and the cluster was to split into two. I wonder how common that type of quorum disk setup would be these days, I gather most would use GFS in this scenario with 4 nodes, eliminating the need for any specific failover of an ext3 disk mount etc., and merely failing over the services accross all cluster nodes instead. Karl -- Karl Podesta -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
