A while back, I attempted an installation of ZCS on an iSCSI volume that already had ZCS on it and had previously been mounted on another server. The install script did not care for my idea of an "upgrade" and unceremoniously deleted /opt/zimbra entirely. I had hoped that the install script would realize what I was trying to do and treat the installation as an upgrade, thus retaining my configuration, but that wasn't in the cards and I ended up with a fresh installation. No big deal, as there wasn't much to reconfigure. (the original installation was an eval)
However, the outcome of my experiment makes me wonder under what other circumstances I could lose everything under /opt/zimbra... and with it, all mail and backups. As such, it occurs to me that it might be prudent to keep backups and message stores outside of /opt/zimbra. I do understand that it is not wise to install ZCS itself to another path, but it seems that the developers have anticipated, and provided for, the other things. Is there any reason why I would not want to have something like:
Each of these would be a partition on an iSCSI volume, i.e. /dev/sdbx.
Suggestions are welcome.