Public bug reported:
Binary package hint: hdparm
I have parallel installs of Gutsy & Hardy on my laptop, and some time
ago read about the load cycle count problem and how to stop the rapid
increase in load cycles by disabling power management via hdparm. I
immediately configured hdparm.conf and installed smartmon-tools to watch
the count, and it seemed to slow the increase. At that point I was on
approximately 130,000 cycles on a 6 month old hard disk.
In recent months I've been using the Hardy Heron alpha, and on
installation I configured hdparm and smartmon-tools in the same fashion
as with Gutsy. I recently happened to check the count, and noticed to my
alarm that my disk is now over 170,000 load cycles (disk failure becomes
increasingly likely around 200,000 cycles).
I immediately checked my hdparm.conf etc, noted everything was correct
and then ran hdparm from the command line as follows:
sudo hdparm -B 255 -S 240 /dev/hda
(-B) setting the APM setting to 255, thereby disabling APM on the drive
altogether
(-S) setting spindown_time to 240 (i.e. after only spin down after 20 mins of
inactivity
I then ran:
smartctl -a /dev/hda | grep Load_Cycle_Count
to watch the counter. In spite of the hdparm command I'd given, load
cycles continued to accumulate at the rate of several per minute (I
could hear the drive quietly clunking each time).
I can not continue to use Hardy until this problem is rectified.
** Affects: hdparm (Ubuntu)
Importance: Undecided
Status: New
** Tags: disk hardy
--
Hardy hdparm does not honour power management options, leading to premature
disk failure
https://bugs.launchpad.net/bugs/195822
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