Hello all. I've been experimenting with RH Cluster Suite and GFS and have come upon a few questions which I hope the list will be able to help. Kudos to all of the developers, RHCS and GFS are really cool! To my question, I'm trying to setup a storage network with GFS and GNBD using a 3 layered approach as shown in Figure 5 in the following link: http://www.redhat.com/magazine/008jun05/features/gfs/#fig=multipath and also here: http://www.redhat.com/docs/manuals/csgfs/browse/rh-gfs-en/s1-ov-perform.html#S2-OV-MODPRICE Obviously, the intent is to eliminate any SPOF for the storage network. For the sake of example, let's say that I have 2 GNBD servers connected directly to the SAN, snode001 and snode002. If I export the the same SAN block device from these 2 GNBD servers for load sharing purposes and snode001 fails, how do the GNBD clients importing that block device from snode001 know that they can also find that block device on snode002? Is this somehow handled at a lower level by configuring a resource within the RH Cluster Suite? I've scoured the list archives and found the following example, using multipath, which seems to come very close: http://www.redhat.com/archives/linux-cluster/2005-April/msg00065.html However, the documentation states that multipath GNBD cannot be used with GFS 6.1: http://www.redhat.com/docs/manuals/csgfs/browse/rh-gfs-en/ch-gnbd.html Is there another way of accomplishing this without using multipath or am I misunderstanding the concept of how multipath is utilized in this setup? Any feedback would be appreciated. Thanks! -Curt -- Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
