in an attempt to save power on FreeBSD servers, I'm
trying to replace the hdd with a ramdisk. The idea is to:
Thanks to all who helped, on and off-list. To sum up:
* Spin down and up of ATA devices: /usr/ports/sysutils/ataidle
or SCSI devices: camcontrol {start | stop} device
I'm probably in over my head here, but;
chroot should change the root filesystem for you.
(look in the manpages for more details)
As for powering down the hdd I did find a page for this,
but havent had time to play with it yet:
http://www.cran.org.uk/bruce/software.php
best of luck!
Hello,
in an
in an attempt to save power on FreeBSD servers, I'm
trying to replace the hdd with a ramdisk. The idea is to:
1. boot from the hdd (or netboot from an NFS server)
2. configure a ram disk (md(4))
3. copy everything that's needed to ram disk
4. transfer kernel root to ramdisk
