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:
http://zane.brouhaha.com/~healyzh/TK50-Leader.gif
Zane
--
--
| Zane H. Healy | UNIX Systems Administrator |
| healyzh(a)aracnet.com (primary) | OpenVMS Enthusiast |
| | Classic Computer Collector |
+----------------------------------+----------------------------+
| Empire of the Petal Throne and Traveller Role Playing, |
| PDP-10 Emulation and Zane's Computer Museum. |
|
http://www.aracnet.com/~healyzh/ |