spinning down hard disk
I was reading the book "Beginning Ubuntu Linux" by thomas keir. In this book there
is a tip given to spin down the hard disk. the author says that it will help a lot in power savings.
he gives the tip as follows
all modern hard disks come with the ability to spin down their motors to save energy.Then,when data is requested,the motors spin up again. There may be a slight delay while this happens, and some people dislike using disk spin-down because of this. However on a notebook, it can lead to a substantial increase in battery life.On a desktop system ,it's worth considering.because over the lifetime of a
computer, it can save a lot of electricity.
on terminal type
gksu gedit /etc/hdparm.conf
you can alter the value to anything you want.each time unit is 5 seconds,so 24 equates to 120 seconds or 2 minutes
when u are finished,save the file.
Reboot for the settings to take effect
Now question is how effective is this tip ???
will it lead to substantial power savings?????