When you install a platform definition, the platform is created in the CICSplex.
You must create a platform definition. See Creating a platform definition.
When you install the platform definition, CICSPlex SM creates a PLATFORM resource to represent the platform in the CICSplex. CICSPlex SM also creates a record for the platform in the data repository (DREP), which is used in recovery processing for the bundles for platforms.
The platform is initially installed in a disabled state. When you enable the platform, any CICS bundles that are deployed with the platform, such as policies, are installed across the CICS regions in the appropriate region type. If you did not install any bundles with the platform, you do not need to carry out the enable action.
The relationship between the platform and each installed CICS bundle is saved in a management part. The management part is a MGMTPART record that is created automatically for each CICS bundle during the platform installation process. The management part records the CICS regions where the bundle is installed, and tracks the status of the bundle in the CICS regions.
If you experienced any problems during the installation process, see Diagnosing platform deployment errors.