spin down a hard disk

spin down a hard disk

Post by Yung-Hsiang L » Sun, 31 Dec 1899 09:00:00



Hi,

I installed Redhat 6.1.  I could not find a way to set up the time to
spin down the hard disk under the "system" or "setting" menu in gnome.
Does this mean that the hard disk is always spinning?  How can I
experiment different timeout values?  Is there anything like a
"control panel" in which I can set the value to, say 3 minutes?

Thanks a lot!

--
                                                   Sincerely,
                                                   Yung-Hsiang Lu

 
 
 

spin down a hard disk

Post by Marc Andre Seli » Sun, 31 Dec 1899 09:00:00



> I installed Redhat 6.1.  I could not find a way to set up the time to
> spin down the hard disk under the "system" or "setting" menu in gnome.
> Does this mean that the hard disk is always spinning?  How can I
> experiment different timeout values?  Is there anything like a
> "control panel" in which I can set the value to, say 3 minutes?

AFAIK, there is no graphical tool to do this.  You will have to use
the command line.  Read the man page for hdparm(8), and be aware that
the whole process is a bit risky in theory.

The command to set the spindown timeout to three minutes on your first
IDE drive should be `hdparm -S 36 /dev/hda'.  If this works, you can
try to make the setting permanent with `hdparm -S 36 -K /dev/hda', or
(maybe safer) add the former command to your /etc/rc.d/rc.local.

 
 
 

1. Hard disk and how to spin it down

Hi,

One general question. I have Linux box that most of the time (12 hours or
more) is in "idle" state - no network connections, no any user activity.
I am trying to find a way to spin down its disk drive when it is in "idle"
state. So far I am not able to do so.
I do not have cron running, neither any other processes interacting with the
disk.
Still hdparm -S  does not work. The disk never spins down.
Yes, there is a bdflush flush deamon runing.
Still, does anybody know possible solution that will spin down the disk
during these long "idle" periods.

Thanks,

Dimitar

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