3480/3490
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< 3480
3480/3490 is the machine type of a tape backup system based on the 1/2-inch cartridge which uses a linear serpentine recording technique.
Tape Drive
There a various models of 3480s/3490s: standalone single drive, rackmounted with autoloader, etc.
The alpha character following the dash indicates what kind of read/write drive is used.
- 3480
- 18 tracks
- 3490
- 18 tracks
- 3490-E
- 36 tracks
Media
There are three kinds of 3480/3490 media. Unlike 3590 media, these do not have distinguishable by the color of the plastic insert on the cartridge, nor the single letter designation near the barcode label.
- 3480 media
- unknown color plastic bottom
- 575 feet
- 3490E media
- putty color plastic bottom
- 1100 feet
Capacity
The capacity of a given 3480/3490 cartridge depends on the drive, the media, and compression.
It varies from 210MB to 1600MB per cartridge.
| Drive | 3480 media |
3590 media |
3590E media |
|---|---|---|---|
| 3480 | 210MB | (400MB) | n/a |
| 3490 | 210MB | (400MB) | n/a |
| 3490E | n/a | n/a | 800MB (1600MB) |
- Note: (##MB) denotes capacity with compression.
See also
External links
- Disc Interchange Service Company links
- IBM 3490E magnetic tape subsystem enhanced capability from the IBM Archives
- wikipedia:Magnetic tape
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