CMF MONITOR and MainView
CMF MONITOR Online and many other BMC Software products run on the MainView infrastructure.
For more information about the MainView platform and the products that run on it, see Customizing-after-installation.
Required address spaces
All MainView products require at least three address spaces: a user address space (UAS), a coordinating address space (CAS), and one or more product address spaces (PASs).
These address spaces make up the MainView infrastructure. The following figure illustrates the communication between these address spaces.

User Address Space (UAS) | The UAS is either a TSO session or a Started Task that provides VTAM or EXCP session support through BMC Software MainView Alternate Access. |
|---|---|
Coordinating Address Space (CAS) | The CAS is a Started Task that runs as an MVS subsystem. There is one CAS per MVS image; each CAS provides various services to all MainView products running on that system. |
MainView Product Address Space (PAS) | The MainView PAS runs as a Started Task and contains both the CMF Extractor and the online component of CMF MONITOR—called CMF MONITOR Online. The PAS also contains its own data collectors, which are in addition to the CMF Extractor samplers. And if you have the BMC Software MainView product, both MainView and CMF MONITOR run in the same MainView PAS on your system. |
Although the CMF MONITOR Extractor is incorporated into the MainView PAS, the Extractor can be initialized separately from the data collectors belonging to the PAS. This arrangement allows you to run the CMF MONITOR Extractor without the overhead of the PAS data collectors. However, it is these data collectors in the PAS that provide support for both the MainView and the CMF MONITOR Online view displays.
When initializing the MVS PAS with the following parameters, you can expect these results:
Parameter | Result |
|---|---|
DC=STOP | You cannot access CMF MONITOR Online or MainView. However, you can later issue a MODIFY command with DC=START to access these products. |
DC=START | Both the Extractor and the MVS PAS data collectors are initialized, and you can access CMF MONITOR Online and MainView. |