On Tue, 2008-01-22 at 16:18 -0500, Jeff Wasilko wrote: > On Tue, Jan 22, 2008 at 03:59:47PM -0500, Christopher Hawkins wrote: > > If you don't need GFS... Then drbd + heartbeat is a good way to go if you > > want to mirror the local storage on each machine. > > True, except Zimbra has explicit support for RHCS, and we'd be off > rolling our own solution with drbd + heartbeat.... As I recall, you can use LVM mirroring. In recent versions of RHCS (4.6 maybe?), there's an agent to handle assembly/disassembly of LVM (non-clustered) volume groups before/after failover. If only one node is accessing the data at a time, maybe this would work for you. (Assumes, of course, you have a SAN) With software RAID (or plain LVM), the general rule is: Do not use a md set or LVM volume group on shared storage *unless* only one node ever assembles that volume-group / raid-set at a time. -- Lon -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
