VM:Operator fails with PRG001 after installing PTF LU18310 when running on z14 hardware.
z14 - Hardware
z/VM 7.4
VM:Operator
Solution is to run your VM:Operator servers with MACH Z and IPL ZCMS in the user directory statement. MACHINE Z IUCV ALLOW OPTION MAXCONN 256 IPL ZCMS PARM AUTOCR