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Controller Transport Units
4-2 Revision P 95693
9490
The 9490, also known as TimberLine, is a high-performance information storage and
retrieval system that uses Extended Enhanced tape (called EETape), Enhanced Capacity
cartridge tape (called E-Cart or E-Tape), and standard length cartridges as the storage
medium.
The 9490 supports three tape-recording formats:
• 36-track, extended (read and write)
• 18-track, extended (read only)
• 18-track, standard (read only)
All three recording formats are compatible with the American National Standards
Institute (ANSI) and European Computer Manufacturers Association (ECMA)
specifications.
SD-3
The SD-3, also called RedWood, is a high-performance helical-scan information
storage and retrieval system.
The subsystem reads and writes on half-inch magnetic tape cartridges in
American National Standards Institute compatible helical-scan recording format.
These cartridge tapes are not compatible with linearly recorded cartridges and
are available in the following types:
• 10 gigabyte “A” cartridge = 91 meters (298 feet)
• 25 gigabyte “B” cartridge = 204 meters (668 feet)
• 50 gigabyte “C” cartridge = 392 meters (1,286 feet)
• 50 gigabyte VolSafe “C” cartridge = 392 meters (1,286 feet)
• Cleaning “D” cartridge for cleaning the tape path
Power Switch
Figure 4-1 on page 4-3 shows the power switch. This switch is located on the upper rear
panel of the cartridge drive.
Operator Panel
Figure 4-2 on page 4-3 shows the location of the library operator panel. When a library is
in manual mode this panel provides the operators with the same information as the
overhead display and controls as the front control panel.