A Configuration Data Record (CDR) provided a manufacturer mmm device but no corresponding load module IOSTmmm was found in the LNKLST concatenation. This is an informational message and if Dynamic Channel Path Management (DCM) is not being used it may be ignored. If DCM is being used, the manufacturer provided load module needs to be linkedited into the LNKLST concatenation and the operator needs to issue the SETIOS DCM=REFRESH MVS™ operator command to refresh the Control Unit Model Table (CUMT).
Processing continues.
If DCM is active, load the manufacturer's IOSTmmm module into SYS1.LINKLIB and issue the SETIOS DCM=REFRESH command to rebuild/refresh the Control Unit Model Table (CUMT). If DCM is not active, no immediate action is required, however, it is recommended to obtain this module as the system may utilize the CUMT to support future functions. Note the SETIOS DCM=REFRESH command is independent of the use of DCM.
Input/output supervisor (IOS)
IOSVCUMT