After a hardware failure, we just had to do a bare metal restore from backups. (Let me say that the Zimbra support engineer who helped out with this, Santosh Rao, was incredibly helpful--one of the best support experiences I've had. ) Anyway, after the restore, it seems that all of the administrative zimlets are missing from the Admin Console (Backups, HSM, Licensing, etc.)
I have attempted to use `zmzimletctl deploy /opt/zimbra/zimlets-network/com_zimbra_backuprestore.zip`to restore the Backup/Restore zimlet. The command reports success, but the Zimlet does not appear in the Admin Console.