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Date:      Mon, 07 Aug 2000 23:37:59 -0700
From:      Mike Smith <msmith@freebsd.org>
To:        "Simon" <simon@optinet.com>
Cc:        "freebsd-hardware@FreeBSD.ORG" <freebsd-hardware@FreeBSD.ORG>
Subject:   Re: What happened? 
Message-ID:  <200008080637.XAA09403@mass.osd.bsdi.com>
In-Reply-To: Your message of "Tue, 08 Aug 2000 01:26:31 EDT." <200008081252.GAA50952@mail.fpsn.net> 

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> Great to here there is a fix :-) I have another seagate drive in the same box:
> 
> da1 at ahc0 bus 0 target 1 lun 0
> da1: <SEAGATE ST318436LW 0005> Fixed Direct Access SCSI-3 device 
> da1: 80.000MB/s transfers (40.000MHz, offset 31, 16bit), Tagged Queueing Enabled
> da1: 17522MB (35885168 512 byte sectors: 255H 63S/T 2233C)
> 
> Same problem I suspect. The drive is just bigger in size. What would you suggest as the best fix for this? can I just 
> update the firmware? or going with a different controller is better? I doubt i have write cache turned on as the drive 
> seems to work much slower creating empty files than 5.4k 40 gig IDE maxtor drive (creates 10,000 empty files 10x faster 
> than the SCSI i got). Still not exactly sure why.

You have the same range of fixes available in either case; the firmware 
fix is probably the best.

As for performance; there are a plethora of tuning options available to 
you; I would suggest that you experiment with them and learn something 
for yourself. 8)

-- 
... every activity meets with opposition, everyone who acts has his
rivals and unfortunately opponents also.  But not because people want
to be opponents, rather because the tasks and relationships force
people to take different points of view.  [Dr. Fritz Todt]




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