From owner-freebsd-scsi  Mon Nov 11 14: 4:54 2002
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Date: Mon, 11 Nov 2002 14:04:48 -0800 (PST)
From: Nate Lawson <nate@root.org>
To: Miroslav Pendev <miro@cybershade.us>
Cc: SCSI FreeBSD <scsi@freebsd.org>
Subject: Re: SCSI tape error - End-of-data detected
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On Mon, 11 Nov 2002, Miroslav Pendev wrote:
> Hi,
> 
> I just did upgrade of our SCSI DDS3 tape archiver from
> HP12GB to HP 20GB(40 w comppresion).
> 
> From dmesg:
> sa0 at ahc0 bus 0 target 4 lun 0
> sa0: <HP C5683A C111> Removable Sequential Access SCSI-2 device
> sa0: 20.000MB/s transfers (20.000MHz, offset 15)
> 
> I have two full backups without any errors but this morning
> I've got the following from the /kernel
> 
> (sa0:ahc0:0:4:0): WRITE FILEMARKS. CDB: 10 0 0 0 1 0
> (sa0:ahc0:0:4:0): BLANK CHECK req sz: 0 (decimal) asc:0,5
> (sa0:ahc0:0:4:0): End-of-data detected
> (sa0:ahc0:0:4:0): failed to write terminating filemark(s)
> 
> I am not sure what's wrong with the tape this time?
> What does End-of-data detected means?
> 
> The backup script didn't return any errors, well at least
> tar c /path/to/backup didn't return error.
> 
> Any ideas are welcome!

You had two full backups with teh new drive without any errors?  And all
you changed was the tape to get an error?  Perhaps it's a bad tape?  See
if you can get a reproduceable error and then please report.

-Nate


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