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List:       freebsd-isp
Subject:    Re: Disable write caching
From:       Jim Weeks <jim () siteplus ! net>
Date:       2000-09-24 18:32:58
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Thanks,

Your memory is certainly better than mine.  You had it exactly right ;-)

--
Jim Weeks


On Sun, 24 Sep 2000, Andre Albsmeier wrote:

> On Mon, 18-Sep-2000 at 09:51:34 -0400, Jim Weeks wrote:
> > I have a Seagate Barracuda drive that is giving me a fit.  There has been
> > some discussion on this list about disabling the write cache on these
> > drives.  I remember that someone posted the procedure, but can't find it
> > in the archives.
> > 
> > If anyone has that information I would appreciate a response.
> 
> I am currently in the Dominican Republic with my laptop that
> doesn't have SCSI so I have to remember it from head...
> 
> You have to edit a modepage to do this. It can be done with
> 
> camcontrol modepage da0 -m 8 -P 3 -e
> 
> For da0 you use your drive and for 8 the modepage number. Then
> you will get your editor launched and see an entry like:
> 
> WCE: 1
> 
> This means that write caching is enabled. Change it to 0 and
> quit. You can launch the camcontrol again to see if the drive
> remebered the new setting.
> 
> I think 8 is the correct number...
> 
> If you have an Adaptec Controller with the latest BIOS (2.57.2)
> you can also set the WCE flag there in the SCSI select utility...
> 
> 	-Andre
> 



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