[Bug 59695] Re: High frequency of load/unload cycles on some hard disks may shorten lifetime

[scar]

i have been living with this problem for years, never occurred to me it
could be resolved through software.  i have a sony vaio pcg-tr3a with
hitachi HTC426040G9AT00 disk drive.  i don't think it keeps track of the
load cycle with a human readable number, but it is definitely
increasing:

$ date; sudo smartctl -a /dev/sda|grep Load_Cycle_Count
Fri Jan 29 00:43:37 MST 2010
193 Load_Cycle_Count        0x0032   011   011   000    Old_age   Always       -       9055335103588
scar at kovu:~$ date; sudo smartctl -a /dev/sda|grep Load_Cycle_Count
Fri Jan 29 00:47:17 MST 2010
193 Load_Cycle_Count        0x0032   011   011   000    Old_age   Always       -       9055351880805
$ date; sudo smartctl -a /dev/sda|grep Load_Cycle_Count
Fri Jan 29 00:56:07 MST 2010
193 Load_Cycle_Count        0x0032   011   011   000    Old_age   Always       -       9055368658022
$ date; sudo smartctl -a /dev/sda|grep Load_Cycle_Count
Fri Jan 29 00:56:32 MST 2010
193 Load_Cycle_Count        0x0032   011   011   000    Old_age   Always       -       9055385435239


i am using ubuntu 9.04 with acpi-support 0.121, and i have enabled laptop mode in /etc/default/acpi-support

it doesn't seem to have helped, but i understand it is only supposed to
help when on battery power?

this laptop remains stationary and on AC power, so i would like to also
hear about a solution for this scenario.

-- 
High frequency of load/unload cycles on some hard disks may shorten lifetime
https://bugs.launchpad.net/bugs/59695
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