Is there a command to put static red light by SSH on Antminer S9/s9i ? I've been struggling to figure out.
You can
control the LED lights with
BraiinsOS, or force them to blink or not to identify units.
Identifying a miner in a farm
The local miner utility can also be used to identify a particular device by enabling aggressive blinking of the red LED:
$ miner fault_light on
Similarly to disable the LED run:
$ miner fault_light off