Question about Compaq DLT Tape Drive (TF85) DLT Tape Drive

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Parity error issue with TF85 DSSI based on VAX4000 - 700

I'm facing a parity error with my drive disk TF85
When I try to initialise them it shows parity error
I tried to swap controlor board with the same ref
and I tried cleaning tape III, well it occurs a same
error message
Somebody has had such issue please someone can answer me
Best Regards
K Berkani

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  • 4,234 Answers

If cleaning the heads using the cleaning tape did not help, then there are 3 possibilities that I know of:

1) The heads are sufficiently dirty to require direct cleaning with a more powerful solution.
2) The heads are defective.
3) The heads are out of alignment.

Parity errors are not usually controller problems. If the head alignment has drifted enough, you may be missing a track when recording. An initialization includes writing format information at the beginning of the tape. This is "re-read" during the process to confirm correct writing. This is the part that is failing.

Keep me posted.

Dan

Posted on Apr 09, 2009

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