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Date:      Wed, 28 Jul 1999 20:38:45 +0200 (CEST)
From:      Wilko Bulte <wilko@yedi.iaf.nl>
To:        grog@lemis.com (Greg Lehey)
Cc:        tetsuhiro@tsuzuki.ne.jp, freebsd-scsi@FreeBSD.ORG
Subject:   Re: SYNCHRONIZE CACHE with a vinum volume
Message-ID:  <199907281838.UAA00983@yedi.iaf.nl>
In-Reply-To: <19990728131110.P66861@freebie.lemis.com> from Greg Lehey at "Jul 28, 1999  1:11:10 pm"

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As Greg Lehey wrote ...
> On Wednesday, 28 July 1999 at 12:38:57 +0900, tetsuhiro wrote:
> > I made a mirrored vinum volue on FreeBSD 3.2R.
> > The volume has a /usr partition and /var links to /usr/var.
> > Ofcause I changed vext.h and move history_log file to a root
> > partition.
> 
> The fact that you're using Vinum doesn't have anything to do with this
> problem.
>  
> > When I do shutdown the machine, I get following messages:
> >
> >  syncing disks... done
> >  (da0:ahc0:0:1:0): SYNCHRONIZE CACHE. CDB:35 0 0 0 0 0 0 0 0 0
> >  (da0:ahc0:0:1:0): error code xx at block no. 0 (decimal)
> >
> > where xx differs time by time. it was 59, 66, 5, 85, 1.
> > da0 is:
> >  da0: <CONNER CFP21005S 2.14GB 172A>
> >  da0: 10.000MB/s transfers (10.000MHz, offset 15) Tagged Queueing
> > Enabled
> >  da0: 2048MB (4194304 512 byte sectors: 64H 21S/T 2048C)
> >
> > Should I disable tagged queueing on this old drive?
> 
> I don't think that this will help.  I have similar problems here with
> old drives.  Is this a problem for you?  Otherwise I'd just ignore it.

The reason is probably pretty simple: the drive does not know about /
support the SYNC CACHE SCSI cmd.

-- 
|   / o / /  _  	 Arnhem, The Netherlands	- Powered by FreeBSD -
|/|/ / / /( (_) Bulte 	 WWW  : http://www.tcja.nl 	http://www.freebsd.org


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