Finding the attached HMC

From Linux on Power wiki

You may be sitting in front of a Linux session, and not be certain which HMC the machine is attached to. One can find out the HMC from the Linux command line. To do this, install the ppc64_utils-2.1 package, and then run the commands

serv_config -e hmc0

serv_config -e hmc1

etc, repeating up to 15 if necessary. This will print out the name and IP address of the attached HMC console, as well as other info.