RE: hdparm
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Well you would have to try some combinations before the optimum
settings can be found..do this by changing one of the settings and
testing the performance using hdparm -t /dev/hda....the higher the
value, the better the performance...however, if you are using one of
several m/b (the one which I am using is Asus P5A-B), DO NOT enable
dma (i.e. -d1) as it will screw up you hardisk i.e. "corrupt" files
on the hardisk (I noticed these files were mainly in the /
partition). Use the kernel-patch-ide.....deb instead to patch the
kernel and enable dma support...(I successfully did this last
night)...
Also note that not all the parameters set will bring on performance
gains for the hardisk e.g setting -mX on my box did not bring on any
performace gains and in some cases, enabling -c1 detiorated
performance!!!!
HTH
Patrick Cheong
Information Systems Assurance
Measat Broadcast Network Systems
e-mail: mailto:patrick_cheong@astro.com.my
Visit us at: http://www.astro.com.my
- -----Original Message-----
From: Krzys Majewski [SMTP:majewski@cs.ubc.ca]
Sent: Monday, September 11, 2000 10:19 AM
To: CHEONG, Shu Yang [Patrick]
Cc: debian-user@lists.debian.org
Subject: RE: hdparm
How do I know if I need any of these options for my hard
drive? Are the kernel/ide driver defaults reasonable? Do these flags
improve
performance? (Right now I'm just using hdparm -y to spin down the
disk) -chris
On Mon, 11 Sep 2000, CHEONG, Shu Yang [Patrick] wrote:
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>
> I included an additional SXX in the rc2.d dir as follows:-
>
> #! /bin/sh
> # Enabling dma for hda
>
> hdparm -d1 -c1 -a1 -A1 -m8 -k1 /dev/hda
>
> Remember to chmod the file created to 755 less it does not execute
> at boot. Also, I'd manually try this first before actually
> including the above, particularly the -d1 as on some systems, it
> screws up the
> hardisk. Also, try a combination of the settings to get the optimum
> performance from the hardisk (this can be tested using the hdparm
> -t /dev/hda). Good luck!
>
>
> Patrick Cheong
> Information Systems Assurance
> Measat Broadcast Network Systems
> e-mail: mailto:patrick_cheong@astro.com.my
> Visit us at: http://www.astro.com.my
>
> - -----Original Message-----
> From: Jamie Raymond [SMTP:jraymond@cs.rice.edu]
> Sent: Saturday, September 09, 2000 10:44 PM
> To: debian-user@lists.debian.org
> Subject: hdparm
>
> Hi,
>
> Where's the best place to put a call to hdparm so that it gets
> invoked
> upon booting? (would inserting it into an existing file in
> /etc/init.d
> be appropriate?)
>
> Thanks,
Jamie
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