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'Turn off hard disk after' - Questions - Page 2

post #11 of 12
7/22/12 at 4:29am
Thread Starter 
I did a practical trial with the spin down, but windows would spin them at random sometimes. What idle operations does Windows 7 perform involving non-system drives? If I turn off indexing and the obvious things like scheduled defrags and virus scans, will Windows leave the drives alone?

Interesting side note: Windows does spin down the system drive (I'm using an HDD as O/S drive for testing), so I would definitely be using the SSD for O/S drive if I decide to keep 'Turn off hard disk after' on for this machine. It's daft that they don't let you specify individual timers for individual drives.
Edited by Oubadah - 7/22/12 at 4:58am
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post #12 of 12
7/23/12 at 1:03am
Quote:
Originally Posted by Oubadah View Post

I did a practical trial with the spin down, but windows would spin them at random sometimes. What idle operations does Windows 7 perform involving non-system drives? If I turn off indexing and the obvious things like scheduled defrags and virus scans, will Windows leave the drives alone?

Interesting side note: Windows does spin down the system drive (I'm using an HDD as O/S drive for testing), so I would definitely be using the SSD for O/S drive if I decide to keep 'Turn off hard disk after' on for this machine. It's daft that they don't let you specify individual timers for individual drives.
It's not the OS so much as all your software...

For example, audio drivers. Some of them like to reload config files every few seconds. That's how they do inter-process communication - every audio driver process reloads a config file every few seconds, parsing for updates and then adjusting settings. Oh, and just to be sure it doesn't miss anything, it checks every drive letter for that config file, causing all drives to spinup if spun down. thumb.gif

I'm being serious here - I think it was VIA HD Audio drivers that used to do that. rolleyes.gif I'd advise you to check your Task Manager - configure it to show reads/writes, then watch and see what is going up slowly.

If you want more detailed info, grab Process Explorer and do the same.
http://technet.microsoft.com/en-us/sysinternals/bb896653.aspx
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