CMMVC8280E The host has at least one volume mapped which is accessible through more than one I/O group, and the port being added is from a host system which does not support volumes being mapped from multiple I/O groups.
Explanation
The host has at least one volume mapped which is accessible
through more than one I/O group, and the port being added is from
a host system which does not support volumes being mapped from multiple
I/O groups.
Note: This error does not apply to release 7.6.0 and up.
User response
Choose a different port to add to the host.