>Date: Fri, 26 Aug 2011 03:18:40 -0700
>From: John Gilmore <gnu@...>
>Subject: Re: [smartmontools-support] controlling time before spin down
>To: R Kimber <richardkimber@...>
> > I have just bought a Samsung 2TB Story Station external USB 2.0 drive ...
> > The disk works fine, except that it automatically spins down very
> > quickly when it thinks it's not needed. Since it takes 5-10 seconds to spin
> > up after doing a 'save' this has started to become irritating.
>There are many "consumer" drives that do similar things now, unloading
>the heads or even spinning the drive down in just a few seconds. I've
>been dealing with Western Digital "Caviar Green" drives that unload
>their heads every 15 seconds to save power and heat. This also wears
>out the drive quickly; in the last year, my drive has used almost half
>of its rated 300,000 "Head Load Cycles" visible in the SMART stats.
>In the case of the WD drive, none of the things that WD recommends
>actually works to fix it.
Have you tried WD's WDIDLE utility?
Alternatively, here is the reverse engineered Linux version:
Before you try the above, I suggest you do some research to determine
if the utility is safe to use with your model.