I just went through this article from one of the blogs, which says like Ubuntu will have HDD in trouble when your laptop is running on the battery. The reason is that, the disk heads are parked as part of the power saving strategy. When the disk needs to be accessed, the heads are unparked.This can only happen about 600000 times before a disk becomes likely to fail :p.
Its been found that “Feisty and Gusty releases of Ubuntu do this up to 4 times per minute, which is _bad_, considering that kind of frequency gives your hard disk a life expectancy of 104 days! ” it seems , which is really an alarming issue to the Ubuntu team.
All said and done , now whats the solution? The solution is to turn off this power management issue by executing the following commands.
” sudo hdparm -B 255 /dev/sda ” :- to turn off the power management.
“sudo smartctl -d ata -a /dev/sda | grep Load_Cycle_Count” :- to check life left in your hard disk :p
I hope that ubuntu team team take this issues seriously before it looses its faithful users.