I wonder how current it has to be ...got my drives about 6 months ago.
>From: "Don Krause" <[EMAIL PROTECTED]>
>Reply-To: <[EMAIL PROTECTED]>
>To: <[EMAIL PROTECTED]>
>Subject: RE: [Cooker] 32 bit i/o for hard drive
>Date: Wed, 7 Jun 2000 17:42:33 -0700
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>DMA works fine on CURRENT Wd disks. There was an issue with an earlier
>disk.
>
>just a simple test on my Mandrake7.0 box with a single WD 27 GIG drive.
>(Using bonnie)
>Fresh reboot, no hdparm:
>
> -------Sequential Output-------- ---Sequential
>Input-- --Random--
> -Per Char- --Block--- -Rewrite-- -Per
>Char- --Block--- --Seeks---
>Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec
>%CPU
> 100 4261 73.5 5092 7.5 1776 19.8 2928 71.9 3956 18.5 288.7
>8.3
>
>Reboot again. Then hdparm -d1c1 /dev/hda (then run bonnie again)
>
> -------Sequential Output-------- ---Sequential
>Input-- --Random--
> -Per Char- --Block--- -Rewrite-- -Per
>Char- --Block--- --Seeks---
>Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec
>%CPU
> 100 7919 99.3 28024 30.9 9332 20.8 7509 86.8 19223 16.9 440.1
>2.4
>
>That's a pretty good improvement for a drive that isn't susposed to work at
>all in UDMA mode.
>
>--
>Don Krause [EMAIL PROTECTED]
>
>
> > -----Original Message-----
> > From: bobby dowling [mailto:[EMAIL PROTECTED]]
> > Sent: Wednesday, June 07, 2000 5:04 PM
> > To: [EMAIL PROTECTED]
> > Subject: Re: [Cooker] 32 bit i/o for hard drive
> >
> >
> > Well, it looks like you got lucky. I have a 13 gig and an 8
> > gig WD and they
> > are both slow. The funny thing is that the 8 gig is a 5400
> > rpm drive and
> > hdparm says it is a shade faster than the 13 gig drive, which
> > is a 7200 rpm
> > drive...go figure. ...around 4.7 megs/sec each.
> >
> > I wish I knew this before I bought the drives. I got them at
> > Best Buy and
> > they sale both WD and Maxtor drives ...it was a flip of the coin then
> > ...should have done my research ...maybe next time!! :)
> >
> >
> > >From: Sebastian Dransfeld <[EMAIL PROTECTED]>
> > >Reply-To: [EMAIL PROTECTED]
> > >To: [EMAIL PROTECTED]
> > >Subject: Re: [Cooker] 32 bit i/o for hard drive
> > >Date: Thu, 8 Jun 2000 00:24:36 +0200 (MET DST)
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> > >
> > >On Wed, 7 Jun 2000, bobby dowling wrote:
> > >
> > > > So, there is no way to use DMA on WD drives? Man, this
> > stinks. Why are
> > >WD
> > > > hard drives so much slower than others? It seems like
> > this would be
> > >widely
> > > > know and people wouldn't but them.
> > >
> > >Model=WDC AC310200R
> > >
> > >This one works with standard Mandrake hdparm options.
> > >
> > >Timing buffered disk reads: 64 MB in 5.10 seconds = 12.55 MB/sec
> > >
> > >It's okay.
> > >
> > >seb
> > >
> >
> > ______________________________________________________________
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