I just took over a Zimbra 5.0.10_GA_2639.RHEL4_20081003014818 installation and I'm trying to understand the backups that are taking place. There is a nightly cron job backupZimbra.pl that runs and seems to backup the entire zimbra installation (for us /opt/zimbra/) to $backup_dir defined in said program. Some mechanism is also backing up accounts.xml and a sessions directory to the same location. I don't understand where this latter backup is originating and what the sessions directory contains that wouldn't be backed up by backupZimbra.pl.
I appreciate any help.