Never Spin Down (spin off)


I am using my drobo mini wih 4 2Tb discs and a mSata 250Gb, thunderbolt attached to a MacMini Server latest model, and the drobo mini NEVER spins down the discs (turn yellow).

Is there a way to discover why it is never spinning down? Is it mandatory do unmount the volume?

I erased all AFP and SMB shares, just to make sure it was not the file sharing services, but the discs keep spinning. Any ideas???

hi, i think they made newer version of mini firmware to always spin too