How to Shutdown ZFSSA from CLI

The aim of this post is to show the simple method of shutting down the ZFS Storage Appliance (or one node of the appliance) from CLI without typing 'Y' to the confirmation prompt

If we add confirm in front of the command maintenance system poweroff - it will power off the appliance without asking you for the confirmation.

Example #1 - requiring user confirmation

zfssa1:> maintenance system poweroff 
This will turn off power to the appliance. Are you sure? (Y/N) Y

Example #2 - without confirmation

zfssa1:> confirm maintenance system poweroff 
(System shut down starts)