Unofficial Ugly Load_Cycle_Count Fix for Hardy
Don't apply any unofficial ugly fixes unless you understand what you are doing and you understand how to revert. Only apply this fix if you are heavily affected. After applying this fix keep an eye on your Load_Cycle_Count and on your harddrive temperature and make sure it remains below the maximum temperature specification of your harddrive. Also don't forget that having your harddisk head park protects your harddrive if you experience any bumps (which is especially nice if you are on the road and therefor probably working on battery).Everything you do is on your own risk.
Please give me feedback so I can improve this post.
First read the first two posts of this thread which explain the problem and the fix for Gutsy :
http://ubuntuforums.org/showpost.php...46&postcount=1
http://ubuntuforums.org/showpost.php...46&postcount=2
Hardy switched to pm-utils so the fix is a little bit different for Hardy. But the same principles apply so be sure to read the fix for Gutsy so you understand what you are doing. But putting 99-hdd-ugly-fix.sh in /etc/acpi/* won't work for Hardy.
Here's the fix for Hardy :
http://en.opensuse.org/Disk_Power_Management
The temperature of the disk seems a little bit higher for me in Hardy. Watch it very carefully!
I'm experimenting with these values but you might need different values :
Code:
DEVICES_DISK_PM_POWERSAVE_OFF="hdparm -q -B 254 -q -S 0"
DEVICES_DISK_PM_POWERSAVE_ON="hdparm -q -B 128 -q -S 0"
Also read about why I choose these values :
http://ubuntuforums.org/showpost.php...5&postcount=15
hddtemp bug :
http://ubuntuforums.org/showpost.php...2&postcount=27
This probably doesn't work for suspend/resume. We'll have to figure out what's the cleanest solution for this in Hardy. Since acpi-support is replaced by pm-utils and I'm not sure whether /etc/acpi/* solutions will work in Hardy and will remain working in the future (Intrepid,Interpid+1,...). My laptop doesn't reliably suspend/resume so I can't test any suggested solutions myself.
Cleanest way I can currently think of is that this should be fixed is by making pm-utils call the scripts in /etc/pm/power.d after resuming/thawing. If that's done Suse's workaround will work even after suspend/resume without any adaption.
I just reported this bug against pm-utils :
https://bugs.launchpad.net/ubuntu/+s...ls/+bug/235105
Please give me feedback so I can improve this post.
Don't apply any unofficial ugly fixes unless you understand what you are doing and you understand how to revert. Only apply this fix if you are heavily affected. After applying this fix keep an eye on your Load_Cycle_Count and on your harddrive temperature and make sure it remains below the maximum temperature specification of your harddrive. Also don't forget that having your harddisk head park protects your harddrive if you experience any bumps (which is especially nice if you are on the road and therefor probably working on battery).Everything you do is on your own risk.
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