9710 (StorageTek) Addendum for NonStop Servers

Addendum to the StorageTek 9710 for the Tandem Enviroment
Operating the 9710 Automated Cartridge Subsystem
4-4
4.8 Error Recovery and Calibration
The 9710 robotics are totally self calibrating. There are no operator
adjustments. The robot automatically returns online in the event of
a power failure. A cartridge that was in the process of being moved
when a power failure occurred will be returned to its previous
location when the power returns.
4.9 Automated CTU Cleaning
When a Cartridge Tape Unit must be cleaned, the CTU will signal
the library. The robot will then automatically load the dedicated
cleaning cartridge into that CTU. After the cleaning operation is
completed, the robot will automatically return the cleaning cartridge
to its dedicated cell. This typically takes less than 30 seconds.
The DLTtape FRUs are based on a 5 ¼-inch form factor, half-inch
tape drive. The design includes a dual-channel read/write head,
Digital Lempel-Ziv (DLZ) high-efficiency data compression, and
tape mark directory to maximize data throughput and minimize data
access time.