After seeing this article on the problem with BIOS/hard drive power management, I decided to check out how my Thinkpad T23 was doing.
$ date ; sudo smartctl -a /dev/sda | grep Load_Cycle_Count
Mon Oct 29 00:50:18 CDT 2007
193 Load_Cycle_Count 0x0012 087 087 000 Old_age Always - 131889
$
Yikes. I don’t know what the rating for this hard drive is, but most of the numbers I’ve seen are around 200,000. I’ve only had this PC for a couple months maybe. Even assuming 200 cycles per day, say 60 days, it’s only about 12,000. Ubuntu doesn’t turn on any power management of the disk by default and laptop-mode was never running, so it does whatever the BIOS/HDD is set to do. I’d hate to think that I burned through most of the life of this hard drive just in last couple months or so.
This PC was running XP (I assume) prior to being given to me. It was an easy fix for Linux, following the directions at the link above. How do other operating systems handle disk management? Are newer hard drives less aggressive in their power management?