From owner-freebsd-scsi  Wed Jan  6 09:43:36 1999
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	Wed, 6 Jan 1999 09:42:40 -0800
Date: Wed, 6 Jan 1999 09:42:40 -0800 (PST)
From: Matthew Jacob <mjacob@feral.com>
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Reply-To: mjacob@feral.com
To: Andreas Klemm <andreas@klemm.gtn.com>
cc: scsi@FreeBSD.ORG
Subject: Re: -current: Write append error since a few days with TDC 4222
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Okay. I made some changes (I blatted about it before hand I think) which
caused selection of variable to occur as a default, modulo (cough) errors
in setting variable or already known 'fixed' block device (either by quirk
or by density code detection). I'll finish the second step and quirk to
FIXED a number of devices that really are known to be FIXED only.
Apparently too many of these devices say "oh sure, we do variable" when in
fact they don't.

On Wed, 6 Jan 1999, Andreas Klemm wrote:

> On Tue, Jan 05, 1999 at 04:01:27PM -0800, Matthew Jacob wrote:
> > 
> > 
> > Try setting it to fixed block mode (mt -f /dev/rsa0 blocksize 512) and try
> > again and let me know.
> > 
> > I'm going to be working on the tape driver this week so let me know soon.
> 
> Ok, just a moment please ...
> 
> Well, fixed blocksize works fine !
> 
> 	Andreas ///
> 
> root{113} /cvs sh -x /mkdump
> + PATH=/sbin:/usr/sbin:/bin:/usr/bin:/usr/local/bin
> + export PATH
> + TAPE=/dev/rsa0
> + NTAPE=/dev/nrsa0
> + DUMP=dump 0uabf 64 /dev/nrsa0
> + echo -n mkdump:: rewind tape
> mkdump:: rewind tape+ mt -f /dev/rsa0 rewind
> + echo  done.
>  done.
> + mt -f /dev/rsa0 blocksize 512
> + date
> Wed Jan  6 07:51:36 CET 1999
> + dump 0uabf 64 /dev/nrsa0 /
>   DUMP: Date of this level 0 dump: Wed Jan  6 07:51:37 1999
>   DUMP: Date of last level 0 dump: the epoch
>   DUMP: Dumping /dev/rda0s2a (/) to /dev/nrsa0
>   DUMP: mapping (Pass I) [regular files]
>   DUMP: mapping (Pass II) [directories]
>   DUMP: estimated 22220 tape blocks.
>   DUMP: dumping (Pass III) [directories]
>   DUMP: dumping (Pass IV) [regular files]
>   DUMP: DUMP: 22295 tape blocks on 1 volumes(s)
>   DUMP: finished in 50 seconds, throughput 445 KBytes/sec
>   DUMP: level 0 dump on Wed Jan  6 07:51:37 1999
>   DUMP: Closing /dev/nrsa0
>   DUMP: DUMP IS DONE
> + dump 0uabf 64 /dev/nrsa0 /var
>   DUMP: Date of this level 0 dump: Wed Jan  6 07:52:28 1999
>   DUMP: Date of last level 0 dump: the epoch
>   DUMP: Dumping /dev/rda0s2e (/var) to /dev/nrsa0
>   DUMP: mapping (Pass I) [regular files]
>   DUMP: mapping (Pass II) [directories]
>   DUMP: estimated 37167 tape blocks.
>   DUMP: dumping (Pass III) [directories]
>   DUMP: dumping (Pass IV) [regular files]
>   DUMP: DUMP: 37194 tape blocks on 1 volumes(s)
>   DUMP: finished in 88 seconds, throughput 422 KBytes/sec
>   DUMP: level 0 dump on Wed Jan  6 07:52:28 1999
>   DUMP: Closing /dev/nrsa0
>   DUMP: DUMP IS DONE
> + dump 0uabf 64 /dev/nrsa0 /usr
>   DUMP: Date of this level 0 dump: Wed Jan  6 07:54:01 1999
>   DUMP: Date of last level 0 dump: the epoch
>   DUMP: Dumping /dev/rda0s2f (/usr) to /dev/nrsa0
>   DUMP: mapping (Pass I) [regular files]
>   DUMP: mapping (Pass II) [directories]
>   DUMP: estimated 646349 tape blocks.
>   DUMP: dumping (Pass III) [directories]                            
> 
> 
> -- 
> Andreas Klemm                                http://www.FreeBSD.ORG/~andreas
>      What gives you 90% more speed, for example, in kernel compilation ?
>           http://www.FreeBSD.ORG/~fsmp/SMP/akgraph-a/graph1.html
>              "NT = Not Today" (Maggie Biggs)      ``powered by FreeBSD SMP''
> 


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