ESMTYPE(NONE)
Specifying ESMTYPE(NONE) effectively bypasses
security for the entire subsystem. During CAS initialization, a SAF-compatible
call is made to the ESM using the following parameters:
The ESM (or a user-supplied MVS™ router exit) must exist to authorize ESMTYPE(NONE), and the CAS must be permitted UPDATE access to it. The ESM (or user-supplied MVS router exit) must respond to this request with a return code of zero (0). Otherwise CAS installation will be terminated. See Invoking a user-supplied external security manager for more details about the MVS router exit.