Cluster without shared disk, or over shared over NFS

[Lon Hohberger]

On Thu, 2005-01-27 at 15:28 -0500, Brian Beaver wrote:
> Thanks for the good info.  So to summarize, Redhat clustering still appears
> to require "local" disks.  The Netapp iSCSI solution just helps the drives
> appear local to the O/S.  Any idea if Redhat clustering is allowed without
> the shared drive requirement, similar to Veritas clustering using multiple
> NIC's for heartbeats instead of a shared drive partition?

To be more precise, it's not heartbeating that needs it.  You can use
heartbeat over bonded ethernet links for network redundancy if desired.

It's the semi-persistent shared cluster service and lock states and
cluster configuration information which is stored on the shared raw
partitions.  The shared raw disks can be used as a backup to determine
whether the other node is online in 2-node clusters in the event of a
network partition.

-- Lon