#!/bin/sh

# info from:
# http://www.linuxsa.org.au/mailing-list/2001-04/358.html
# http://chlug.org/hdparm_howto.php

if [ "$1" == "start" ] ; then
	dma=1
	what="Enabling"
else
	dma=0
	what="Disabling"
fi

echo -n "$what DMA and MaxMultSect: "
for disk in hda hdc hde hdg hdi hdl hdn hdo ; do
	mms=`hdparm -i /dev/$disk | grep MaxMultSect | sed 's/.*MaxMultSect=//' | cut -d, -f1`
	echo -n "$disk/$mms "
	hdparm -q -d $dma -m$mms -c3 -k1 /dev/$disk
done
echo