Need to know DDS drive used to write backup tapes

From: Steven N. Hirsch <>
Date: Tue Oct 5 17:20:25 2004

On Sun, 3 Oct 2004, Zane H. Healy wrote:

> > On that subject, can anyone shed light on what appears to be a common
> > failure mode for DLT7000 drives? I have (2) which misbehave in the same
> > manner. At powerup, the head recalibrates (bzzzzzttt), the door lock
> > solenoid activates and the green LED on the bottom right lights. However,
> > all the density and tape type LEDS on the left simply flash in
> > sync approx. 2x per second. An inserted tape will load, but that's all
> > she wrote. No track calibration, no shoeshine - nothing. Exact same
> > symptoms on both units.
> >
> > One was working until the power was accidently interrupted in the midst of
> > a backup. The second was a $5.00 swap-meet item picked up in the hope of
> > yielding parts to get the first working <g>.
> I don't happen to have the manual handy, but have the drives swallowed the
> tape leader? It's a bit of a pain in the neck to restring the leader on a
> DLT7000 compared to a TK50, but it's still not that hard. When you look in
> the drive, you should see something that looks like the bottom end of the
> following:

Unfortunately, that's not the problem. The leader is in place and, as I
mentioned in my first post, it does properly load the tape and wind
forward for a bit. On a working drive, it begins to shoe-shine back and
forth until it calibrates itself. The bad drives just sit there blinking
until I hit the unload button.

Do these things use holes in the tape to locate BOM, or is it magnetically

Received on Tue Oct 05 2004 - 17:20:25 BST

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