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
