On 11/11/2013 10:49 AM, Ellison, Bob wrote: > - Can GlusterFS even work with GFS2 partitions or must it be XFS / > EXT4 / (et al)? GlusterFS can work with any filesystem that supports extended attributes. As far as I know this would include GFS2, though I don't know of anybody doing that and I suspect it might be a bad idea (because having two levels of heartbeats and HA is always a a bad idea). > - Can GlusterFS be configured in to accommodate the existing SAN? We - upstream/community, not Red Hat Storage - neither support nor preclude it. In other words, we don't have any code to set it up for you, but if you want to set up heartbeat and failover between paired servers instead of using our replication then you can. You'll probably even get better performance, at the cost of greater administrative and operational complexity. On the other hand, if you only have two servers then the other stuff is sufficient and you don't need us. ;) Such a configuration would only make sense if you're using it instead of that one specific replication component, but also need distribution/striping or other GlusterFS features in addition to that. For example, if you had ten servers and you used GlusterFS to create a "union" across five pairs, that's not a bad way to do things.
