All,
Finally solved the problem. It was the SCSI Cable.
Before trying a different SCSI cable, I
transferred the SCSI controller and tape drive to
a Windows 2000 machine. I updated the firmware
and ran all of its diagnostic tools. Everything
ran fine. I even made a few backups with no
problem. Remember, this was with the original cable.
I then transferred the SCSI controller and tape drive
back to the original Linux machine (with the original
cable. Still the same problem. So I asked a
friend to borrow his SCSI cable and poof...it worked!
Thanks,
Terry
--- Jon LaBadie <jon AT jgcomp DOT com> wrote:
> On Fri, Jul 19, 2002 at 12:03:22AM -0700, Terry
> Koyama wrote:
> > This is a continuation of my earlier problem which
> > still exists:
> > Garbage in Amanda tape headers -
> >
>
http://groups.yahoo.com/group/amanda-users/message/36902.
> >
> > So what I did was break down the problem to
> isolate
> > the problem. I got a blank tape, wrote a file to
> it
> > and read it back out. The file that was returned
> from
> > the tape was corrupted with garbage in certain
> areas.
> >
> > I must be going insane! What would be the cause
> of
> > this? Block sizes? Faulty tape drive? Faulty
> tape?
> > SCSI related?
> >
> > Anyway, here are the details:
> >
> [ diagnostics snipped ]
> >
> > H/W Specs:
> > SCSI storage controller: Adaptec AHA-2940U2/W /
> 7890
> > (rev 01)
> > HP SureStore 1559C DAT Autoloader Tape Drive
> DAT24x6e
> > (DDS-3).
>
>
> - Used a head cleaner tape recently?
>
> - Run your test with a second tape to make sure it
> is not
> a single defective tape.
>
> - The drive you (and I) are using has very specific
> installation
> settings for some dip switches. They are
> different for HP-UX,
> AIX, Solaris, ... I peeked at my manual and see
> nothing
> relating to Linux. I would search your docs
> and/or contact
> HP support for recommendations about the settings
> of these
> switches for Linux. BTW requires case opening
> IIRC.
>
> - Where in the scsi chain is it located? At the
> end? Does it
> matter/have an effect?
>
> - How is your scsi cable? Tried others?
>
> - How is your scsi terminator? Active/passive?
> Tried others?
>
> - You have a wide-scsi capable controller, but I
> believe the
> drive is narrow-scsi. I think it has 3 buss
> connectors,
> one narrow, the others wide. Are all terminated
> properly?
> Are you on the narrow or a wide buss? If on a
> wide buss,
> are the extra, unused lines, terminated at all,
> probably
> before the drive is reached?
>
> --
> Jon H. LaBadie jon AT jgcomp DOT com
> JG Computing
> 4455 Province Line Road (609) 252-0159
> Princeton, NJ 08540-4322 (609) 683-7220 (fax)
__________________________________________________
Do You Yahoo!?
Yahoo! Health - Feel better, live better
http://health.yahoo.com
|
