The z/VM *MONITOR record device driver receives monitor records through
an IUCV connection to the z/VM *MONITOR system service. This connection
could not be established when the monitor record device was opened. If
the return code is 15, your z/VM guest virtual machine is not authorized
to connect to the *MONITOR system service.
User response
If the return code is 15, ensure that the IUCV *MONITOR statement is
included in the z/VM directory entry for your z/VM guest virtual machine.
For other IUCV CONNECT return codes see the IUCV section in "CP Programming
Services" and the *MONITOR section in "z/VM Performance".