In article <bac833fe.0312170822.39055b64@posting.google.com >,
asumoactingbig <asumoactingbig@yahoo.com> wrote:
>I'm having some trouble reading from my backup tapes. When I try to
>run 'restore -i' it times out and after 3 attempts resets the SCSI
>bus. After that I get 'mt: /dev/rst0: Input/output error' trying to
>access the drive through mt and restore or dump don't do any better.
>The only way I know to clear the problem is to reboot the machine.
>That's not a good option so what I want to know is, how can I
>clear/reset/re-initalize/whatever the SCSI bus without rebooting? I'm
>running OpenBSD 3.2 which I know I should update but I'm reluctant to
>do so until I trust my backups. It's a VXA-1 internal packet tape
>drive. Ecrix has a VXATool for diagnostics but it's not built for
>OpenBSD so I can't tell if tell if the drive is the problem. Anyone
>knows a way to make it work or find a something that does the same
>thing?

Just for clarity, there are more switches used with interactive
restore than just 'restore -i'. Exactly what command are you using?

Exactly what command did you use to write the backup tapes?

Did you specify a blocksize when writing the backup tapes? While it
is sometimes true that restore can determine the blocksize of the
tape it is reading, it is more often the case that it can not.
(after the era of 9-track tapes). It is always safer to specify a
blocksize to restore.

carl
--
carl lowenstein marine physical lab u.c. san diego
clowenst@ucsd.edu