SUMMARY : SCSI disk/board problems (long post)

From: SAMPSO01@swmed.edu
Date: Fri Oct 15 1993 - 04:44:09 CDT


Hi all -

Sorry for the delay in summarizing, but I waited to post until a
solution was found.

(Since the original post was so long, I've compressed & uuencoded
it and attached it to the end to save a bit of bandwidth. It might be
necessary to run it through dos2unix to read it - all my editing is
done in DOS)
Anyway - the sufggested solutions were :
        1) Check the power supply:
        We did, and it was ok.

        2) Try reformatting the disk on another system:
        Unfortunately, the only other system I could commandeer
        has ESDI drives. Our other functioning SCSI drive systems
        are constantly in use (and make us a bit of $) and are
        not available for that sort of thing - would be nice to try,
        though.

        3) It was suggested the SCSI board or CPU might be malfunctioning:
        See below...

        4) I was told the DMA error which occurred points to a
        CPU problem:
        See below....

        5) Swap cables and reseat boards:
        Tried this. No luck.

The solution (this is the below I asked you to see):
        We got an identical disk from the folks we bought the system from,
        and thinking the SCSI board might be causing physical problems
        with the disk (is this possible? The reseller said it was) we
        replaced the SCSI board with one from a system which is not
        in use at present. All seems okay now, but I haven't ruled
        out the possibility of a CPU problem of some kind underlying
        all of this (or in addition to all this).

Thanks again for the help.
                                Mike
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