> 2: ) I looked at DRDB. My feeling is that it is not a good product compared to Netvault Replicator which integrates with RHCS services and provides native failover. Also does DRDB do block level GFS replication without the need to mount both disks on the same host? "mount bouth disk on the samo host"??? I don't understand this. DRBD 0.8 is block level replication(like RAID1 but via network), and you need clestered filesystem on the of it. You see /dev/drbdX on both nodes, and it only support two node clusters. Best Regards Maciej Bogucki -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster