> I am purchasing the equipment to attempt a configuration I found here: > > http://www.redhat.com/magazine/008jun05/features/gfs/#fig-mirroring > > How does GNBD able to export the mirrored drives? How would the mirror be > created? If gnbd exports a local device, lets call it /dev/md0, how does > the local drive actually get mirrored from the drive of the second > machine? > > I haven't been able to locate too much information on this mirror volume > pairs, is there a document anywhere that could explain the setup? > > The goal is to get two machines, each with two 500 Gig drives to use gnbd > multipath to export their local drives as a single source...thus there > would be failover just as described in the document. Hello, Use drbd [1] to mirror two block device via network. Then use GNBD or iSCSI to export DRBD device to group of servers. If You need automatic failover You could use heartbeat [2] or RHCS [3] [1] - http://www.drbd.org/ [2] - http://www.linux-ha.org/ [3] - http://www.redhat.com/software/rha/cluster/ Best Regards Maciej Bogucki -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
