About SSH "poweroff" command

When I use “hibernate” option on control panel,my Ex2 Ultra could wakeup by WOL command.
But when I use “poweroff” command by SSH,Ex2 Ultra produce a “power failure” log and couldn’t wakeup by WOL command.

Now I want to make my Ex2 Ultra hibernate or “proper shutdown and can be wakeup”(I didn’t find “shutdown” command in the OS) by SSH
What command should I use?
Thanks

I found the answer :
https://community.wd.com/t/turn-off-shut-down-wd-my-cloud-using-android/165551/8

SSH command: /usr/local/modules/script/shutdown.sh -h now

Hello, glad to see that you were able to find the solution.