Whichever OS you are running, be it MS Windows or Linux, your Hard Drive could be working itself to death by performing anywhere between 4 – 150 cycles every 15 minutes. Here is some information of how to test your machine for this hard drive life-shortening issue in Ubuntu Linux (Gutsy and Hardy), as well as MS Windows (Towards end of post):
There are two main fixes for Linux (Ubuntu), and here are the differences between the two:
This fix stops the hard drive head from parking altogether, weather you are on AC or Battery power!
This fix stops the hard drive head from parking while on AC power and enables it when you are on battery. This is preferred for those who find themselves on-the-go quite often.