Shutting down the drive

I know how to disconnect the drive from my system via the “safely remove hardware option” or via the “power button on the drive option”.  Can I also just shut down my computer?  Will the drive power down on it’s own if I do that?  For some reason I’m afraid to try and risk data loss if I screw something up.

U CAN SHUTDOWN  THE COMPUTER THAT WILL NOT HARM THE DRIVE NOR THE DATA …

SHUTTING DOWN THE COMPUTER WILL  TAKE THE DRIVE TO SLEEP MODE