Shutdown HMC

In Short

hmcshutdown -t now

Shuts down the HMC command immediately.

Detailed Explanation

HMC enables the user to shutdown Hardware Management Console using cli or gui options. The command hmcshutdown will shuts down or restart the Hardware Management Console (HMC).

Command to shutdown HMC immediately
hmcshutdown -t now

Command to shutdown HMC after delay of 5 minutes 
hmcshutdown -t 5

The option -t is the time if we need to shutdown with a delay of 5 minutes we can provide 5 in the option, else if needed immediately we should provide now.

Caution: Users should use this option carefully as it will halt the HMC and only option to power on is either using Hardware Power on or using IMM/ BMC.