[CentOS] Disk Elevator

> You use elvtune to tweak it. Basically you just define the max length
> the write queue can be before attention will be given to reads and
> likewise for the read queue. man elvtune for more information.

"[root at server ~]# elvtune /dev/hda
ioctl get: Invalid argument

elvtune is only useful on older kernels;
for 2.6 use IO scheduler sysfs tunables instead.."

Thats what I get.

Matt