Reference Information
Chapter 1. Reference Information
The IBM Digital Linear Tape Library is a robotic tape handling system that provides
up to 525 GB of uncompressed or 1050 GB (1.05 TB) of compressed data storage
capacity for network computer systems.
The total data capacity depends on the type of tape cartridges in the tape library and the number of storage cells reserved
for data tape cartridges.
The tape library can hold a maximum of 15 tape cartridges; up to 10 cartridges can be held in a removable magazine and up to 5
cartridges in fixed cells located inside the library.
The tape library has two configurations:
- Rack-mounted (for use in industry-standard instrument racks)
- Desktop (for use on horizontal work surfaces)
Figure 1 shows the tape library in these configurations.
Figure 1. Tape Libraries in Typical Configurations
The tape library connects to computer systems or network servers to provide
high-capacity system backups.
It is suitable for on-line storage, as well as retrieval and archival of large files (such as image files) and sequential data sets.
The library is available in two machine types: 3447 and 7337.
The 3447 Digital Linear Tape Library has two models:
- Model 105 (Desktop Single-ended Interface Library)
- Model 106 (Rack Mount Single-ended Interface Library)
The 7337 Digital Linear Tape Library also has two models:
- Model 305 (Desktop Differential Interface Library)
- Model 306 (Rack Mount Differential Interface Library)
The tape library is designed for unattended operation; however, an operator display
panel on the front of the 7337 Tape Library lets you monitor library and drive
activities, suspend operations, load and unload tape cartridges, and run confidence
tests and diagnostics.
These operations can also be initiated through the host computer interface.
The tape library communicates with a host computer through a small computer systems interface-2 (SCSI-2).
The library has an RS-232 connector on the back panel.
Using this connector, you can attach a terminal or small computer to download firmware or to access diagnostic and statistical information.
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