Hi Ken, 

You can one by one check all service in init 5.
Just disable it and look at the disk status.



Joey Lee

於 一,2010-01-11 於 17:44 +0800,Zhang, Austin 提到:
> pidstat can help on this, but moblin didn't have this tool in repo, so you 
> can copy one from other distros like fedora.
> 
> We had encountered similar issue in old system, but now it seemed work well. 
> Which version moblin/platform are you using? 
> Please post your result on this investigation if you like. 
> 
> -----Original Message-----
> From: [email protected] [mailto:[email protected]] On Behalf Of MEC 
> Ken
> Sent: Monday, January 11, 2010 11:07 AM
> To: dev
> Subject: [Moblin Dev] Spin down disk for saving power
> 
> Hi
> 
>     I'm trying to use "hdparm" to spin down disk for saving power.
>     It works, but after a while the disk wakes up again (checked by "hdparm
> -C /dev/sda").
>     I guess some processes access disk in the background periodically.
>     Does any one know why this happens or is there any tool can find
> out which process is accessing disk?
> -- 
> 王志均 Ken Wang
> TEL : 886-2-6600-0100 ext. 540
> FAX : 886-2-6606-1007
> E-mail : [email protected]
> 
> INSTITUTE FOR INFORMATION INDUSTRY
> Networks & Multimedia Institute
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