Re:Aacraid and DTL: case study

Jean-Paul ARGUDO wrote:

> I use Amanda for 2 months now (got 10 tapes cycling). Everything worked
> just fine, changing tape everyday , etC. But since May 5, my DLT tape
> hangs (all three leds shining). The only thing I found to make it all
> work again, and be able to eject tape is: shutdown server (electrically
> too, if just rebooting, DLT still hanged) and shutdown tape
> (electrically), remove scsi wire. Wait 10 seconds, rewire scsi external
> cable and rebooting all.
>
> Here a sample of what I have (yes, Amanda is running at 2 am) in
> /var/log/messages:
>
> May  6 18:27:40 master kernel: st0: Block limits 2 - 16777214 bytes.
> May  6 19:51:48 master kernel: aacraid:Battery charge is now OK
> May  7 02:00:01 master kernel: (scsi1:A:6:0): Unexpected busfree in
> Message-in phase
> May  7 02:00:01 master kernel: SEQADDR == 0x1a3
> May  7 02:00:01 master kernel: st0: Error 10000 (sugg. bt 0x0, driver bt
> 0x0, host bt 0x1).
>
> Everything I try to do in command as root got this message:
>
> master:~# mt -f /dev/nst0 eject
> /dev/nst0: Input/output error
> master:~# mt -f /dev/st0 eject
> /dev/st0: Input/output error
>
>
> So it is probably not a matter of problem with aacraid but:
>
>  - I want to be sure it is not, thus, this could help you (hope so):
>     dont hesitate in asking for more infos, extracts, whatever
>
>  - If its a problem with Adaptec card? Will your new aacraid driver will
>    help me, letting me the availability of external scsi connector to
> work (so no need of a enventually buggy Adaptec card..)
>
>  - any help welcome,

There is a bug at st.c SCSI Tape Driver. Kai Makisara sent to scsi-linux list
a fix time ago. But _only_ alan cox kernels have the fix.
Try a 2.4.21-rc2-ac2 more info at:
http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=79027
http://www.linuxtapecert.org/
http://www.kolumbus.fi/kai.makisara/st-eot.html

regards,
-- 
Galiza nin perdoa nin esquence. Governo demision!



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