Comment 357 for bug 59695

My laptop was experiencing problem in this thread.
Now it is working quite better, hard drive can be idle for so long that it parks heads and so on - parking cycles still increses but I daresay at the sane levels - I've got 10k after half a 5 months of usage.
So what i did?

I've tried every trick that i can think of that could reduce hdd usage:
http://www.lesswatts.org/tips/disks.php - this was good starting place - I've used every trick there, took some of them to extreme.
I've inputed insane high values for everything, like thay say:
echo 1500 > /proc/sys/vm/dirty_writeback_centisecs
i did:
echo 150000 > /proc/sys/vm/dirty_writeback_centisecs

Other tricks (not only hard drive) are also worth trying.

I've checked logs, disabled acpi logging as this was cousing insane high amouts of logs (some kind of error or sth), set all logs NOT to be flushed.
I've disabled uneccessary services (cups for example - it is known to couse problems with hdd usage)
I've disabled or make happen not so often many services from cron (updatedb anyone? hate this). I do not start cron if on battery (with laptop mode)
Of course disks mounted with noatime, nodiratime.
I've enabled laptop mode with aggressive pwr mgmt (insane high amouts for acceptable data loss time for the example)
I am using B 128 on battery and 254 on ac. Hard drive spindown on battery is 30 seconds. If i do just web and IM hdd can be spined down for 10-15 minutes. (not parked, spined down)

I encourege all of you to try the same - tweak your system so no hard disk activity is going on, this is our problem, not head parking. On windows it just depend how much bloatware you have i guess.