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Appendix B: Maintaining Drives
Archive Python 4320 NT (4 mm DAT Drive)
The Archive Python 4320 NT provides 1.3 GB of storage on a 60-meter DDS
DAT cassette, and 2.0 GB of storage on a 90-meter DDS DAT cassette. The
4320 NT drive complies with the American National Standards Institute
(ANSI) Digital Data Storage (DDS) format and uses a small DAT with 4 mm
tape. The data transfer rate is 183 KB per second. Note that these capacity
and transfer rate figures are approximate.
Loading and Unloading Cassettes
Insert the cassette so that the arrow on the top of the cassette enters the drive
first. To load a cassette, insert it into the drive and push gently on the middle
of the cassette until the tape is fully recessed in the drive unit.
When you load a tape into the drive, the unit checks to see if the tape is
initialized. This checking process takes between 10 and 20 seconds. If the
tape has never been initialized, the drive will initialize it when you first start
to write data to the tape. Initializing the tape takes an extra 30 seconds
beyond what is required to write the data.
Note:
Do not remove the tape from the drive while it is being initialized. To
remove a cassette, press the unload button on the face of the drive. The unit
automatically rewinds the tape and ejects it partway. Grasp the cassette and
remove it from the drive. Note that the unload button is disabled when the
drive is in use.
Removing a Jammed 4 mm Cassette
To remove a 4 mm tape that has jammed in a drive, follow these steps:
1. Power-cycle the tape drive and then try ejecting it.
2. If that does not eject the drive, power-cycle it while holding down the
unload button.
If neither of these two steps ejects the jammed cassette, contact your service
provider.