Application to Control Hard Drive RPM Speed

[BENCHMARKMAN]

Are there any linux applications that will allow me to adjust the hard drive RPM rotational speeds? I've used similiar programs for windows before but now I am running a linux setup.

[chris81]

Hi

Wine is a free software application that aims to allow Unix-like computer operating systems to execute programs written for Microsoft Windows.

(from Wine (software) - Wikipedia, the free encyclopedia)

so, just to install WINE by typing :

sudo apt-get install wine

and then install the software that allows you to control the RPM.

or you can always check at

- SourceForge.net: Software Map
- 486projects tagged "Hardware" | freshmeat.net

the first post of the following link speaks also about virtually slowing down an hd

http://www.linuxforums.org/forum/deb...cpu-usage.html

[reed9]

hdparm(8): get/set hard disk parameters - Linux man page
hdparm FAQ/HOWTO & help - Ubuntu Forums

The -M flag is probably what you'd want. Example

hdparm -M 128 /dev/sda

Sets it to quiet, ie, slows down the head rotation.

-M
Get/set Automatic Acoustic Management (AAM) setting. Most modern harddisk drives have the ability to speed down the head movements to reduce their noise output. The possible values are between 0 and 254. 128 is the most quiet (and therefore slowest) setting and 254 the fastest (and loudest). Some drives have only two levels (quiet / fast), while others may have different levels between 128 and 254. At the moment, most drives only support 3 options, off, quiet, and fast. These have been assigned the values 0, 128, and 254 at present, respectively, but integer space has been incorporated for future expansion, should this change.

[BENCHMARKMAN]

hdparm(: get/set hard disk parameters - Linux man page
hdparm FAQ/HOWTO & help - Ubuntu Forums

The -M flag is probably what you'd want. Example

hdparm -M 128 /dev/sda

Sets it to quiet, ie, slows down the head rotation.

Hey, thanks for the reply, that is exactly what I wa looking for. Does hdparm also tell you what the current rpm speed is or do I need to get a second app to confirm the current rpm speeds?

[reed9]

hdparm -M /dev/sda

Outputs the current setting.

hdparm -I /dev/sda

Gives lots of info about the drive.

[MikeTbob]

Don't forget to test your changes before committing them

hdparm -Tt /dev/sda

[BENCHMARKMAN]

hdparm -M /dev/sda

Outputs the current setting.

hdparm -I /dev/sda

Gives lots of info about the drive.

It doesn't tell me the current rotational speed though Any other ways?

[BENCHMARKMAN]

Don't forget to test your changes before committing them

hdparm -Tt /dev/sda

What I tested between 255 and 128, 128 actually gave me better results. I don't think the settings are actually being applied. When I run hdparm -I /dev/sda it still says 255 but if I run hdparm -M /dev/sda it says 128. I'm confused.