[Plugin] Spin Down SAS Drives
Unraid does a nice job of controlling HDD's energy consumption (and probably longevity) by spinning down (mechanical) hard drives when idle for a set period of time.
Unfortunately the technique used by Unraid to spin down an HDD, true to the time of writing this, works only for ATA drives. If you have SCSI/SAS hard drives, these drives do not spin down (although the UI will indicate they do). The drives continue spinning 24x7, expanding the energy footprint of your Unraid server.
Follo
I spin down all of my SAS drives, but its only on a test system. But others do on their main ones.
Command to spin down is below but you have to use the unraid name i.e. dev1 dev2 dev3 and dev4 in your case. But they can change i.e. if you had a usb device connected a boot etc.
in /usr/local/sbin is emcmd
emcmd "cmdSpindown="
emcmd "cmdSpinup="
Ok, didnt know you cannot set UD individual spin down timers.
Other option is to set default
