Oops, sorry, that should be -A1. (But a peek at the man page would have told
you that I goofed, and how.)
---
On Mon, 05 Jun 2000, you wrote:
> What does -a 1 option do?
>
>
> >From: "Jonathan M. Prigot" <[EMAIL PROTECTED]>
> >Reply-To: [EMAIL PROTECTED]
> >To: [EMAIL PROTECTED]
> >Subject: Re: [Cooker] 32 bit i/o for hard drive
> >Date: Mon, 05 Jun 2000 21:14:20 -0400
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> >David Walluck wrote:
> >AFAIK, you are asked at install time whether you want to enable hard
> >drive optimizations, and warned that it can do some nasty things. The
> >default answer is "No". If you answer "Yes" it puts a line in
> >/etc/sysconfig/system that enables hdparm -a1 -c1 -d1. According to
> >messages here, -d1 may cause system lockups.
> >---
> > >
> > > Brian Fleischman wrote:
> > > >
> > > > I do can do a -c1 just fine also. If I do a -d1 (dma)...locks
> > > up...harddrive
> > > > light on constantly, even with the -X66 or -X68. I have a WD 20.5
> > > ata/66 7200 rpm
> > > > drive. I wonder what's up with the dma stuff.
> > > >
> > > > -Brian
> > >
> > > Hi. Why are hard drive optimizations on per default??? I have to add
> > > "nohdparm" to the command-line. On my WDC 18G drive, it hangs. I'm
> > > having serious problems with DMA enabled on this drive anyway (VP3
> > > chipset). So I turned off "Use DMA by default" in the kernel. Still,
> > > hard drive optimizations apparently can't be enabled on WDC dricves.
> > > I've seen this problem reported many times and I'm experiencing serious
> > > problems myself.
> > >
> > > --
> > > Sincerely,
> > >
> > > David Walluck
> > > <[EMAIL PROTECTED]>
> >--
> >Jonathan M. Prigot
> >
>
> ________________________________________________________________________
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--
Jonathan M. Prigot (617-278-0794)
Brigham and Women's Hospital
900 Commonwealth Avenue, East
Boston, MA 02215-1213
