What is the sense of LED energy saver?

And by “sense”, I mean two things.

  1. LED under Energy Saver can be set to On or Off. Does this mean the LED is on or off, or the energy saver is on or off?

  2. How much energy can possibly be saved by turning off an LED?

I ask because my 1st gen 4 TB MyCloud’s LED stays off regardless of the energy saver setting. I know the LED works because it comes on and flashes during reboot. But it is always off in normal operation regardless of the Energy Saver setting.

If you roll your mouse cursor over the “i” graphic it will give a brief explanation of what the option does.

Screenshot_2020-05-27 WD My Cloud™

Enabling or disabling the LED option: “Sets the status of your drive’s LED.”

In other words it turns on or off the front LED on the single bay/single drive My Cloud.

Edit to add: It should be noted some have reported the blue element of the front LED burns out. Some have resorted to modifying the My Cloud firmware to use an alternate color. Example of past discussions:

Thank you. Apparently my blue LED was indeed burned out. Now I have a nice green LED showing me MyCloud is alive, and the Energy Saver control works again.