Comment # 3 on bug 1154665 from Kristyna Streitova

It seems that this "WD Green idle3 timer problem" is a known issue. It's very
nicely described e.g. at [1].

But I'm not sure what we can do about it. WD Green doesn't support APM so one
has to use either 'hdparm -J' (which is not perfect and upstream recommends
rather using official WD tool) or idle3-tools/idle3ctl. I also read that the
different WD Green series behaved differently regarding idle3 value setting so
sometimes it's necessary to test more ways before one is successful. 

So because of that, I don't think that this is something we can fix globally
within hdparm.


[1]
https://wiki.archlinux.org/index.php/hdparm#Power_management_for_Western_Digital_Green_drives