Comment 73 for bug 952556

I might be missing something, apologies if i am, but I notice that for Precise a decision was made to define a value for -S, in /lib/hdparm/hdparm-functions, when on battery to -S36. From Dagnachewl's comment (70) it would seem that it's the defining of or value of -S that's still causing issues for some.

For anyone who has already updated hdparm to version '9.37-ubuntu3.1' and still experiencing early spindowns I would try commenting out (by preceeding with #) or removing the line "hdparm_set_option -S36" from /lib/hdparm/hdparm-functions. This should effectively revert hdparm-functions to pre-Precise settings - removing any spindown time.

Steve: thanks for the update, works great for me! Maybe the wording of the change in the changelog needs updating. Instead of '...drives are spinning back "up" so frequently' shouldn't it be '...drives are spinning "down" so soon'?
It's that the drive has spun down after only a few seconds of idle (with -B127 and -S36) that leads to it having to spin back up so frequently.

thanks and best of luck all