media server is down for some patching

Hi ALL.

One of my media server is down for patching.

I need to make this offline.

I came for below conclusion:

Deactivate the media server on the Master server by running  

vmoprcmd -deactive_host -h <media_servername>

nbemmcmd -updatehost -machinename <media_servername> -machinestateop set_admin_pause -machinetype media -masterserver <master_server> 

But i just wanna know what all both command will do?

Is command 1 enough for making media server offline?

Why command 2?