Vincenzo Ciancia wrote: > On lun, 2008-09-29 at 17:44 +0900, Tejun Heo wrote: >> Vincenzo Ciancia wrote: >>> Hi, I own a toshiba m400 and I already had to replace a disk in less >>> than one year (luckily, it was covered by warranty). I noticed that >>> Load_Cycle_Count was indeed increasing. Using hdparm -B 255 fixes it, >>> but also 254 seems to fix it (and I guess it is better to have some >>> power management than none at all?). >>> >>> I am not subscribed to the list so if you need more information just ask >>> me. I followed instructions at >>> >>> http://ata.wiki.kernel.org/index.php/Known_issues#How_to_determine_whether_a_machine_has_this_problem >> I just updated the page. Can you please read the updated part (which is >> in bold) and post how much the load cycle count increases per hour >> without any adjustment? > > The problem is that now I don't know what is the default (I also found > no way to read the -B setting with hdparm). I tried with hdparm -B 128 > which seems adviced by many for laptops, and I get 130 cycles per hour. APM setting is not persistent and BIOS probably programs it during boot, so just removing any script you added and doing a cold reboot should give you the default configuration. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html