sudo gedit /etc/system
set ramdisk:rd_percent_physmem=80
usr/src/uts/common/io/ramdisk.c: rd_percent_physmem
sudo mkdir /ramdisk
sudo /usr/sbin/ramdiskadm -a mydisk 3000m
sudo newfs /dev/rramdisk/mydisk
sudo mount /dev/ramdisk/mydisk /ramdisk/
sudo chmod -R a+w /ramdisk/
sudo umount /ramdisk/
sudo /usr/sbin/ramdiskadm -d mydisk
