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Date:      Wed, 17 Mar 1999 20:20:57 +0200 (MET)
From:      Martin Kraft <kraft@hpcs14.dv.fal.de>
To:        mjacob@feral.com
Cc:        freebsd-scsi@freebsd.org
Subject:   Re: i/o error with larger QIC
Message-ID:  <199903171820.UAA04899@hpcs14.dv.fal.de>
In-Reply-To: <Pine.LNX.4.04.9903161509290.12815-100000@feral-gw> from "Matthew Jacob" at Mar 16, 99 03:10:08 pm

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Matthew Jacob wrote:
> 
> > sa0: <WANGTEK 5525ES SCSI M75D > Removable Sequential Access SCSI-CCS device
> > sa0: 4.32MB/s transfers (4.32MHz, offset 14)       
> > 
> > I can read DC 6150 tapes (written under 2.2.7) without problems. But it
> > is impossible to read from a DC 6525:
> 
> If you set to 1KB blocksize, can you read those tapes?

I am not at all familiar with tape commands. I tried the followin - without
success:

su-2.02# mt status
Mode      Density         Blocksize      bpi      Compression
Current:  QIC-320         512 bytes      16000    unsupported
---------available modes---------
0:        QIC-320         512 bytes      16000    unsupported
1:        QIC-320         512 bytes      16000    unsupported
2:        QIC-320         512 bytes      16000    unsupported
3:        QIC-320         512 bytes      16000    unsupported
---------------------------------
Current Driver State: at rest.
su-2.02# mt blocksize 1024
su-2.02# mt status
Mode      Density         Blocksize      bpi      Compression
Current:  QIC-320         1024 bytes     16000    unsupported
---------available modes---------
0:        QIC-320         1024 bytes     16000    unsupported
1:        QIC-320         1024 bytes     16000    unsupported
2:        QIC-320         1024 bytes     16000    unsupported
3:        QIC-320         1024 bytes     16000    unsupported
---------------------------------
Current Driver State: at rest.
su-2.02# tar -t
tar: read error on /dev/rsa0 : Input/output error
su-2.02# mt status
Mode      Density         Blocksize      bpi      Compression
Current:  0x00            512 bytes      0        unsupported
---------available modes---------
0:        0x00            512 bytes      0        unsupported
1:        0x00            512 bytes      0        unsupported
2:        0x00            512 bytes      0        unsupported
3:        0x00            512 bytes      0        unsupported
---------------------------------
Current Driver State: at rest.
---------------------------------
File Number: 0  Record Number: 0
su-2.02#                

----
For further tests, please advice commands and parameters. Thanks very much.

Martin Kraft




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