Re: spin down configurations in dconf in Fedora 16
When was booting F12 on a system with 3 hdd's, I added a command to /etc/rc.d/rc.local to spin down two of the drives after 3 minutes of no activity on those drives. I worked fine, though one of the two drives was sort of "hit or miss" to respond to that command issued. Booting from and running F12 from /dev/sdb, the command I used was:
hdparm -S 36 /dev/sda /dev/sdc 2&>/dev/null
F16 doesn't have a /etc/rc.local or /etc/rc.d/rc.local file, but you can create one yourself. It's just a standard bash script file. As long as the systemd rc-local.service is activated and runs at boot, your rc.local file should get processed. Use whatever hdparm command(s) are appropriate for you're purposes.
On F16, you don't really need the "2&>/dev/null" bit on the tail of the hdparm command. That is there in F12 to keep the stdout text from the hdparm execution from showing in the boot.log file.