DMA can be turned off for all disks by sending ide=nodma to the kernel using LILO (add it to the append line in /etc/lilo.conf). You can then turn on (and optimise) DMA for any disks that support it using hdparm. I added action "Running hdparm: " /sbin/hdparm -d1 /dev/hda to the end of /etc/rc.d/rc.sysinit to turn on DMA for my first hard disk.
Configure DMA
Last modified: 07/05/2006 (most likely earlier as a site migration in 2006 reset some dates) Tags: (none)
