We no longer use tape media (formerly backups were onto a Dell DLT3 MultiChanger) as tapes are fragile, wear out and slow to restore from.
We do *NOT* as a general rule backup customer data unless the Hosting / Colo / Server plan comes with that feature - please check if you are in any doubt.
Archive/Backup services are available as an optional extra - We recommend you *always* have backups yourself of any critical information.