RE: RHEL 3.0 Cluster + LVM

[Rik van Riel <riel redhat com>]

On Thu, 3 Jun 2004, Karasik, Vitaly wrote:

> according to "Red Hat Cluster Suite: Configuring and Managing a
> Cluster", "The use of software RAID, or software Logical Volume
> Management (LVM), is not supported on shared storage." (1.1.1)

The problem is that LVM1 isn't cluster aware.  That means that
if you change a logical volume on one node in the cluster, the
kernel on the other node doesn't know about this change.

I suspect LVM1 will be safe as long as you never change the
LVs, except when the other cluster node is down...

-- 
"Debugging is twice as hard as writing the code in the first place.
Therefore, if you write the code as cleverly as possible, you are,
by definition, not smart enough to debug it." - Brian W. Kernighan