From owner-freebsd-current  Thu Jun 21  0:41:33 2001
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Date: Thu, 21 Jun 2001 14:41:27 +0700
From: "Nickolay N. Dudorov" <nnd@mail.nsk.ru>
To: =?koi8-r?Q?S=F8ren_Schmidt?= <sos@freebsd.dk>
Cc: current@freebsd.org
Subject: Re: More ATA disks with tagged queueing ?
References: <200106210535.f5L5ZOF62152@wint.itfs.nsk.su> <200106210710.f5L7AYb08110@freebsd.dk>
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On Thu, Jun 21, 2001 at 09:10:33AM +0200, Søren Schmidt wrote:
> It seems nnd@mail.nsk.ru wrote:
> > 	After applaying the next patch I can now see
> > in dmesg output:
> > 
> > 	........
> > ad4: 19574MB <IBM-DPTA-372050> [39770/16/63] at ata2-master tagged UDMA66
> > ad6: 19623MB <IC35L020AVER07-0> [39870/16/63] at ata3-master tagged UDMA66
> > 	.........
> > 
> > 	This configuration (ad6 is the IBM's Deskstar 60GXP(?) series
> > disk) was 'tested' by the 'make -j32 buildworld' with the /usr/obj
> > on the ad6 disk.
> > 
> > 	Does this mean that this disk really support "tagged queueing" ?
> 
> Yups, else it would have failed bitterly..
> The diskid (IC...) has me somewhat stumped though, I would have thougt
> the used something like all other IBM disks. Is this a genuine IBM disk
> or is it some kind of OEM/rebadged device ?

	Yes, this IS genuine IBM disk.
See: <http://www.storage.ibm.com/hardsoft/diskdrdl/desk/ds60gxp.htm>

	So I'll continue to use patched 'sys/dev/ata/ata-disk.c'
and hope this will work ;-)

	N.Dudorov

> > Is there any way to test/demonstarte this ?
> 
> Not without instrumenting the code currently
> 
> -Søren

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