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From: steve@Watt.COM (Steve Watt)
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References: <20030329184236.71A3C69@ptavv.es.net>
Date: Mon, 31 Mar 2003 04:49:08 GMT
To: stable@freebsd.org
Subject: Re: Status of ATA tagging in Stable
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In article <20030329184236.71A3C69@ptavv.es.net>,
Kevin Oberman <oberman@es.net> wrote:
>I have a P3 system running STABLE built on March 7. I installed a new
>IBM DTLA disk drive and was distressed at its slowness, so I tried
>turning on tagging to see if that would help. It seemed to, until...
>
>3 AM when my periodic tasks started running. The system lost all disk
>access and logged lots of errors (a few of which I added to the end of
>this message).

This combination worked beautifully until the ATA MFC just after 4.5,
and it has since been declared that those IBM drives don't do tagging
correctly.  Since I've got a semi-production server with the DTLAs
in it, I gave up on tagging, just using UDMA, it's good enough.

-- 
Steve Watt KD6GGD  PP-ASEL-IA          ICBM: 121W 56' 57.8" / 37N 20' 14.9"
 Internet: steve @ Watt.COM                         Whois: SW32
   Free time?  There's no such thing.  It just comes in varying prices...