HP ESL E-series Tape Libraries - Manual (Page 15)

Library robotics
The library robotics consists of the main components identified in Figure 4 .
1. Picker assembly
2. Vertical motor
Figure 4 Library robotics
.
The vertical and horizontal motors move the library robotics into position to pick and place tape
cartridges, and rotate the assembly 180˚ to enable the library robotics to pass cartridges between
the side storage bins and the back storage bins or tape drives. The extension axis assembly is on top
of the large robotics tray. It extends and retracts the library robotics to remove and insert the tape
cartridges into bins and drives.
The library robotics includes the optical scanner that reads barcode labels (7 characters for Super
Digital Linear Tape (SDLT) and 8 characters for Ultrium). The scanner is used to maintain an inventory
of the tape cartridges within the library. A full inventory occurs automatically whenever the library is
powered on or when the doors have been opened. An inventory of just the load ports occurs when
the load ports have been opened. Inventories can also be initiated from the host computer.
HP StorageWorks ESL E-Series Tape Library 15