IMATION TRAVAN 3 1.6/3,2 GB DATA CARTRIDGE TAPE [DM029]:

A backup tape technology from Imation Corporation, Oakdale, MN.

SYNOPSIS:

Travan evolved from the QIC family of tapes, but uses .315" wide tape rather than quarter inch (the QI in QIC).
It also uses different tape guides and improved magnetic media for higher capacities.
With Network Series (NS) drives, which provide hardware compression and read-while-write features, Travan migrated from desktop backup to server backup.
Travan drives may be compatible with QIC, QIC-Wide and QIC-EX cartridges, but it varies from model to model.
See QIC and magnetic tape.

TRAVAN NATIVE CAPACITIES:
TR-1 400MB;
TR-2 800MB (never took off);
TR-3 1.6GB;
HP 5GB (TR-4 with less tape) 2.5GB;
Travan 8GB (TR-4) 4GB;
Travan NS 8 4GB;
Travan 20GB (TR-5) 10GB;
Travan NS 20 10GB;
Travan 40GB 20GB.

Travan Cartridge;
Travan evolved from the QIC family of backup tapes.
Travan drives may also be capable of reading earlier QIC, QIC Wide as well as QIC-EX cartridges.
QIC-EX Extends Travan Capacities;
QIC-EX cartridges from Verbatim extend the cartridge housing to include more tape.
Many Travan drives support QIC-EX cartridges.

Wikipedia: Travan:

Travan is a 8 mm magnetic tape cartridge design developed by the 3M company, used for the storage of data in computer backups and mass storage.
Over time, subsequent versions of Travan cartridges and drives have been developed that provide greater data capacity, while retaining the standard 8 mm width and 750' length.
Travan is standardized under the QIC body.

The Travan format competes mainly against the DDS, AIT, and VXA formats.

Generations:

Generation TR-1 TR-3 TR-4 TR-5 TR-7;
Release date 1995 1995 1997 2002;
Data capacity 400 MB 1.6 GB 4 GB 10 GB 20 GB;
Max speed (MB/s) 0.25 0.5 1.2 2 4;
Media format QIC-80 QIC-3020 QIC-3095;
Min tape length (ft) 750 750 740 740 750;
Tape tracks 36 50 72 108 108;
Recording density (ftpi) 14,700 44,250 50,800 79,800 96,000.

TR-1:
Travan TR-1 cartridges offer a 400 MB native capacity with a 0.25 MB/s transfer rate using the QIC-80 media format.

TR-2:
TR-2 was designed by 3M, but they never marketed it.
TR-2 cartridges were designed to have an 800 MB native capacity with a 0.25 MB/s transfer rate using the QIC-3010 media format.
The spec called for 50 tracks across the tape, with a recording density of 22,125 flux transitions per inch (ftpi).

TR-3:
Travan TR-3 cartridges offer a 1.6 GB native capacity with a 0.5 MB/s transfer rate using the QIC-3020 media format.

TR-4:
Travan TR-4 cartridges offer a 4 GB native capacity using the QIC-3095 media format.

Travan 8 GB cartridges offer a 4 GB native capacity with a 1.2 MB/s transfer rate.
Travan NS8 cartridges offer a 4 GB native capacity with a 1.2 MB/s transfer rate.

Imation HP Colorado 5 GB is a 460 ft variation on the TR-4 standard.
It offered 2.5 GB native capacity, 1 MB/s transfer rate.

TR-5
Travan NS20 cartridges offer a 10 GB native capacity with a 2 MB/s transfer rate.
Travan 20 GB cartridges offer a 10 GB native capacity with a 2 MB/s transfer rate.

TR-7:
Travan 40 GB cartridges offer a 20 GB native capacity with a 4 MB/s transfer rate.

PLEASE NOTE:
This entry is from Wikipedia, the leading user-contributed encyclopedia.
It may not have been reviewed by professional editors.

© 1981-2008 Computer Language Company Inc.

Wikipedia.
This article is licensed under the GNU Free Documentation License.

Copyright © 2008 Answers Corporation.