I'm starting my research and upgrade plan to upgrade our Zimbra from Release 4.5.7_GA_1319.RHEL5_64_20070914214037 CentOS5_64 FOSS edition to the latest stable release of 5.04.
I have it installed on two servers (centOS) with a DRBD partition on /opt where zimbra is located.
Except for the /opt folder, does Zimbra install files else where? DRBD will take care of the update part on /opt but I'm not sure if other files, configs are being written else where and how that will effect my upgrade.
Your inputs are greatly appreciated.