Somebody in the thread at some point said:
If anyone wants more technical information, tell me what to provide.
If
anyone has some things to mitigate the problem, I'm all ears.
# hdparm -I /dev/sda | grep IDLE
* IDLE_IMMEDIATE with UNLOAD
It seems this is the drive attribute that is responsible -- the * means
the feature is enabled. Basically the drive is going to pull the heads
off the media when IT thinks it is idle.
I didn't see how to turn it off yet.
-Andy