A new test conducted this morning without success. I restarted in safe mode with my spin-down delay set to 15 minutes, and I didn't start the array. Despite that, every 15 minutes, the disks stopped and then restarted at the beginning of the next minute after their shutdown. Afterward, I even physically disconnected my server from the network (hence the 'link is down' and following lines in the log), the disks still stopped after 15 minutes and started up again a the begging of the next minute a