As Kelly Yancey wrote ...
> >
> > 3b) Examination of the drive(s) in question for any cooling or
> > mounting deficiencies. Depending on the SCSI errors in question,
> > I might even investigate firmware updates for the drive(s).
> >
>
> I actually used to get these *exact* errors a couple of years ago on
> various 2.x systems. At first, I had assumed a bug in the driver (the ahc
> driver was noted as still having some bugs at the time, if I recall
> correctly). The errors would rare (every month or so, but they would come
> in batches). I kept upgrading, from 2.1.5, through 2.2.5 hoping that the
> errors would go away. Now, my ignorance being point out, it turned out
> that the errors were actually heat-induced.
Another interesting cause for problems is duff powersupplies. As the
proverb goes "every machine is as good as it's PSU". E.g. I just struggeled
with a DLT tape unit that inexplicable reset itself. After examining the
5Volts rail with a scope I found glitches on it whenever the drive did a
bit of rewinding (dropping out of streaming mode). Had me stumped for a
while.
W/
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