When the Zimbra un-installer is run " ./install.sh -u " it would not only remove the zimbra installation but it would also deletes the /opt/zimbra/backup directory.
This may not seem like much, but I can imagine how someone might do the un-install option when attempting to recover from a corrupted Zimbra installation or recover from a down server. They would be in for a surprise when attempting to re-install and restore the mailbox and LDAP accounts from backup when they find the /opt/zimbra/backup is empty.
Running the command " tar xzpf backup.tar " helps by making tar ball backups of the backup directory. But this is not perfect and not all the important data is backed up. Mounting the backup directory on a network share or other disk helps prevent loss of backups due to Operating System or Disk / partition failure but it wont protect from the Zimbra Un-installer.
It seems strange that the Zimbra Un-installer does not give an administrator the option to "remove everything but backups" ?
Should the Zimbra un-installer be modified to give an option to preserve backups or is there a switch that can be invoked to make it preserve backups?