To ensure that you have the ability to operate your installation at all times, you should define multiple consoles with master authority. Note that the system console is forced to have master authority.
CONSOLE DEVNUM(031) NAME(CONS1)AUTH(MASTER)
VARY CN(name),AUTH=MASTER
This command authorizes the console with master authority and establishes the commands that the console can receive. The operator must enter these commands through the console currently defined with master authority. The effect of the VARY command lasts only for the duration of the IPL.