Related to my query at http://www.zimbra.com/forums/install...cs-vmware.html
RedHat Enterprise 4+RedHat Cluster Suite appears not to support clustering LVMs. ZCS 4.5.5 only supports RHEL4, not RHEL5. Even in RHEL5, CLVM is somewhat experimental.
Zimbra Cluster appears not to support multiple /opt/zimbra/storeN partitions. The choice is one partition or 10.
This appears to make it really difficult to expand storage over time. I can't simply add extents to a LV and ext2online to enlarge, because RHEL4 doesn't do CLVM. I can't simply add an additional Zimbra store partition, because it's not fuly supported by Zimbra Cluster.
How do people resolve this?