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Re: SCSI tape errors

On Fri, Jul 14, 2000 at 01:34:13PM +1200, zdrysdal@diagnostic.co.nz wrote:
> Hi
> i have set up a SCSI DAT tape onto debian slink with kernel 2.0.38 and nfs
> (no_root_squash) mounted an IBM AIX directory.  I use a simple backup
> program which tars the files from the AIX directory onto tape.  It works
> for a little while but i think it gets into trouble when it trys to
> proccess a large file (200MB).  I started the backup at 9:30pm and it
> started having problems by 11pm.
> Here is the error message :
> Jul 13 23:11:40 tapier kernel: ASC= 4 ASCQ= 1
> Jul 13 23:11:40 tapier kernel: Raw sense data:0x70 0x00 0x02 0x00 0x00 0x00
>  0x00
>  0x0e 0x00 0x00 0x00 0x00 0x04 0x01 0x00 0x00
> Jul 13 23:11:40 tapier kernel: st0: Error with sense data: extra data not
> valid
> Current error st09:00: sns = 70  2
> Backup program errors are :
> tar: Read error on /dev/st0: Input/output error
> tar: Too many errors, quitting
> tar: Error is not recoverable: exiting now
> I tried doing a tar listing of the tape this morning and it said the the
> start record was unable to be read.
> Does anyone know what is going on... it is a simple proceedure i am doing
> and am frustrated and perplexed as to why i am
> having difficulties.

I've used SCSI tape under Linux and other Unixes, but not scads.  First
thing I'd try though is cleaning the drive (use a cleaning tape), second
would be trying a second media unit to see if maybe there was something
wrong with the tape.  Third, I'd find someone who knows more about tape
processing and drivers than me to diagnose any remaining problems.

Karsten M. Self <kmself@ix.netcom.com>     http://www.netcom.com/~kmself
 Evangelist, Opensales, Inc.                    http://www.opensales.org
  What part of "Gestalt" don't you understand?   Debian GNU/Linux rocks!
   http://gestalt-system.sourceforge.net/    K5: http://www.kuro5hin.org
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