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From: Kenneth Culver <culverk@yumyumyum.org>
To: "Jud " <jud@operamail.com>
Subject: Re: EIDE drive performance improvements
Date: Thu, 4 Apr 2002 20:09:38 -0500
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On Thursday 04 April 2002 07:38 pm, Jud  wrote:
> ----- Original Message -----
> From: Kenneth Culver <culverk@alpha.yumyumyum.org>
> Date: Thu, 4 Apr 2002 18:39:12 -0500 (EST)
> To: Dan Nelson <dnelson@allantgroup.com>
> Subject: Re: EIDE drive performance improvements
>
> > > You should be able to, depending on how the controller presents its=
elf
> > > to the system.  The asr driver looks like a scsi disk to the system=
,
> > > and can accept 255 tagged commands.  I haven't seen my array go abo=
ve
> > > 60, but it does work.
> > >
> > > --
> >
> > Yeah, but we're talking about an ATA array here, I'm not sure that it
> > would work the same.
>
> Some RAID controllers for ATA/IDE drives look like a
> single SCSI device to the system.  I don't think that's
> true of my Promise onboard chip (a software rather than a
> hardware controller), because I have no SCSI support in
> the kernel but the array works fine.
>
> Don't think I need much more tuning anyhow - my last "make
> world" took a shade under 20 minutes.  :)
>
> Jud
OK, now I'm jealous, my 800 athlon with 512MB ram and an ata66 hard drive=
=20
still takes over 50 minutes. :-P

Ken

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