[7034] in linux-scsi channel archive
Re: severe linux problems with scsi tape
daemon@ATHENA.MIT.EDU (Kurt Garloff)
Mon Aug 23 11:16:24 1999
Date: Mon, 23 Aug 1999 16:17:17 +0200
From: Kurt Garloff <garloff@suse.de>
To: Roland Boden <rb@activelink.de>
Cc: linux-scsi@vger.rutgers.edu
Mail-Followup-To: Roland Boden <rb@activelink.de>,
linux-scsi@vger.rutgers.edu
In-Reply-To: <412567D1.0039E72D.00@al-www-mun-00.activelink.de>; from Roland Boden on Mon, Aug 23, 1999 at 03:30:03PM +0100
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On Mon, Aug 23, 1999 at 03:30:03PM +0100, Roland Boden wrote:
> The system crashed with a lot of file system errors and e2fsck was not ab=
le to repair the file
> system structure. A lot files were lost and the system could not be boote=
d. So I had to restore
> the files from the last backup. I then immediately made the backup again =
and ... the system
> crashed again ... (same story). I think i did it three times until I real=
ized that there must
> be something wrong with the tape. I could not read the tape where the bac=
kup was stored (the
> backup when the system crashed). When reading the tape the system crashed=
again (with destroyed
> file system). I only could read the first part of the tape but not until =
the end.
> That's the story. I changed the tape and since then everything works fine=
(until the next tape
> will fail...?).
>=20
> The machine configuration is:
> PC with Cyrix CPU 120 Mhz, 48 MB RAM
> SCSI:
> Controller :Adaptec 1542 , ID=3D7
> HDD: IBM DCAS-34330, 4 GB, ID=3D0
> Tape: HP C1533A, ID=3D2
> CDROM: Toshiba XM-5701TA, ID=3D3
>=20
> ISDN: Teles S0
> Network: NE2000 compatible PCI adapter
>=20
> running the SuSE Linux distribution 5.2 with some partially upgrades, esp=
ecially kernel update
> 2.0.36.SuSE
>=20
> If you have any idea what went wrong or what I can do, please tell me.
You did not tell us what the crash exactly was.
The AHA1542 is known to not recover well from aborted commands which will
result in infinite abort() reset() loops to the SCSI subsystem rendering
your system unuseable effectively. If this is what happended, you might
borrow some other SCSI HA and try whether the bad tape crashes your box
again. I guess no.
Regards,
--=20
Kurt Garloff <garloff@suse.de> Wuppertal, FRG
PGP2 key: See mail header, key servers Linux kernel development
SuSE GmbH, N=FCrnberg, FRG SCSI drivers: tmscsim(DC390), DC395
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