Edit /etc/grub.conf and add elevator=deadline to the end of the kernel line. For example
title CentOS (2.6.18-128.4.1.el5) root (hd0,0) kernel /vmlinuz-2.6.18-128.4.1.el5 ro root=LABEL=/ elevator=deadline initrd /initrd-2.6.18-128.4.1.el5.img
Ryan
On Thu, Nov 5, 2009 at 8:59 PM, Amos Shapira amos.shapira@gmail.com wrote:
Hello,
I'd like to set the io scheduler on some of the disks on our Dom0 (CentOS 5) to "deadline".
The way I found to do this is with "echo deadline > /sys/block/sdb/queue/scheduler".
What is the Right Way(TM) to set this automatically during boot?
I sort of expected to use sysctl but it appears to only deal with pseudo-files under /proc/sys, not /sys.
Also "sysctl -a" doesn't list such options.
Searching the web also only comes up with the "echo" method mentioned everywhere.
Is my only way to add some /etc/init.d script or /etc/rc.local line?
Thanks,
--Amos _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos