3590

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3590 is the machine type of a tape backup system based on the 1/2-inch cartridge, which is also used on the IBM mainframe.

Tape Drive

There are several models of 3590s: standalone single drive, rackmounted with autoloader, etc.
The alpha character following the dash indicates what kind of read/write drive is used.

3590-B drive
128 tracks
3590-E drive
256 tracks
3590-H drive
384 tracks

Media

There are two kinds of 3590 media, distinguishable by the color of the plastic insert on the cartridge and the single letter designation.

3590-J media
blue tab
1050 feet
3590-J tapes can be referred to as "3590" or "native" tapes, as they were the original length.
3590-K media
green tab
2070 feet
3590-K tapes can be referred to as "3590E" tapes, as they are the "extended" length. This has nothing to do with the 3590-E drive model.

Capacity

The capacity of a given 3590 cartridge depends on the drive, the media, and compression.
It varies from 10GB to 180GB per cartridge.

Drive 3590-J
media
3590-K
media
3590-B 10GB
(30GB)
20GB
(60GB)
3590-E 20GB
(60GB)
40GB
(120GB)
3590-K 30GB
(90GB)
60GB
(180GB)
Note: (##GB) denotes capacity with compression.

External links


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