Andrew - thank you very much - I will work on these ideas and get back to all. ----- Original Message ----- From: "Andrew Morton" <akpm@digeo.com> To: "David I. Sommers, Ph.D." <dvdsom@comcast.net>; <ext3-users@redhat.com> Sent: Saturday, January 11, 2003 2:08 PM Subject: Re: acessing hard drive continuously On Sat January 11 2003 01:02, David I. Sommers, Ph.D. wrote: > > My hard drive on a Dell Latitude keeps being accessed every 5 seconds for a > couple tenths of a second. Is there a way yo shut this off. I suspect it > might be related to journaling? Thanks in advance. If you have a very recent kernel (ie: 2.4.20, although redhat may have backported the change) you can add the mount option: commit=60 to every filesystem in /etc/fstab. This will tell the fs to run a commit every sixty seconds, rather than every five. And you also need to tell the kernel's kupdate process to not run every five seconds. So do: echo "30 500 0 0 6000 6000 60 20 0" > /proc/sys/vm/bdflush to set the kupdate intervals to 60 seconds (that's the 6000). With these changes, the disk will only light up once per minute. But the real problem is that some program is causing disk writes. Make sure that all your filesystems are mounted with the `noatime' mount option. If writes are _still_ happening then you'll need to find out who is doing it - just keep shutting things down until it stops. If you do find the source, please report it here - it's a common complaint. Thanks. _______________________________________________ Ext3-users@redhat.com https://listman.redhat.com/mailman/listinfo/ext3-users
