TN2211 Optical Drive has replaced the TN1656 Tape Drive in DEFINITY
ECS R8r and later systems.
The drive provides removable storage for software upgrades, translation
backups, announcement file backups, core dumps, etc., as did the
TN1656 Tape Drive.
Optical Drive has several advantages over the TN1656 Tape Drive:
to the optical disk is considerably shorter than writing to tape.
full backup will take approximately 20 minutes, whereas the tape
drive takes up to 95 minutes.
to the optical disk is more reliable due to: block allocation
(has several spare blocks available)
number of accesses to the media
UN332C MSSNET must be used with the TN2211.