[CentOS] Drive activity every 30sec

Robert Moskowitz rgm at htt-consult.com
Mon Jul 7 23:50:07 UTC 2008

nate wrote:
> Robert Moskowitz wrote:
>> I have a Centos installed on a Hitachi 2.5" drive that shuts off really
>> quickly, it seems.
>> So every 30 sec, the drive makes the sound of an access activity.  I
>> have looked trying to find what might be being updated.  Swap drive
>> usage is 0 bytes.  No activity in /var/log.  What might it be and can I
>> do anything to lessen the drive access (improve battery life)?
> I'm sure there are other things as well but first thing comes to mind is
> disabling atime for your file systems, to test the change you can do this
> (for each of the mount points)
> mount <mount point> -o remount,noatime
Oh, I only did this for the mounts in the LVM partition: / and /home

I forgot to do /boot which is a plain old ext3

Still things are quite. This itself is interesting if only ext3 mounts 
in LVM partitions not just plain ext3 partitions suffer from this.

OOPS, been 15 min, about, and I just heard the drive seek again. But 15 
min I can live with; 30 sec was nerve-racking (on an otherwise silent 
system, no fan).

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