HP SW TL881 DLT Mini-Lib/1 Compaq TL881 MiniLibrary System Users Guide (May 19 - Page 22

Tape Cartridge Magazines, Integral Fan Cooling, Library Robotics, Bar Code Reader

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1-8 Compaq TL881 Minilibrary System Users Guide Tape Cartridge Magazines The 10-cartridge and 16-cartridge magazines are removable from the front panel, but may be protected from tampering by any of three means: 1) a keyoperated Magazine Security Lock which must be unlocked before the magazine can be removed, 2) an electronic combination lock operated by using buttons on the Expansion Unit control panel, and 3) issuance by the host of a SCSI 'Prevent Medium Removal' command. The rugged carbon-fiberreinforced polymer magazine fits into an extruded track, which assures precise positioning with respect to the library robotics. A 10-cartridge tape magazine is shown in Figure 1-4. Insertion and removal of the magazine is described in Chapter 2, Operation. Integral Fan Cooling A single forced-air fan is mounted inside each module to provide optimum cooling for critical parts, and to prevent the drive and robotics electronics, motors and power supply from overheating. Library Robotics The MiniLibrary system features library robotics that can load any of the cartridges stored in any magazine in the system into any of the tape drives, moving cartridges among as many as six modules within the MiniLibrary system. Bar Code Reader The bar code reader is mounted on the cartridge shuttle in each module. It reads bar code labels attached to each cartridge, and maintains the bar code data in memory as part of the library System Map.

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1-8
Compaq TL881 Minilibrary System Users Guide
Tape Cartridge Magazines
The 10-cartridge and 16-cartridge magazines are removable from the front
panel, but may be protected from tampering by any of three means: 1) a key-
operated Magazine Security Lock which must be unlocked before the
magazine can be removed, 2) an electronic combination lock operated by
using buttons on the Expansion Unit control panel, and 3) issuance by the host
of a SCSI ‘Prevent Medium Removal’ command. The rugged carbon-fiber-
reinforced polymer magazine fits into an extruded track, which assures precise
positioning with respect to the library robotics. A 10-cartridge tape magazine
is shown in Figure 1–4. Insertion and removal of the magazine is described in
Chapter 2
, Operation.
Integral Fan Cooling
A single forced-air fan is mounted inside each module to provide optimum
cooling for critical parts, and to prevent the drive and robotics electronics,
motors and power supply from overheating.
Library Robotics
The MiniLibrary system features library robotics that can load any of the
cartridges stored in any magazine in the system into any of the tape drives,
moving cartridges among as many as six modules within the MiniLibrary
system.
Bar Code Reader
The bar code reader is mounted on the cartridge shuttle in each module. It
reads bar code labels attached to each cartridge, and maintains the bar code
data in memory as part of the library System Map.