If you add an external Symantec CMDB connection, you can choose whether you want to include the data in the local Symantec CMDB. Depending on your environment, you may want to include this local CMDB.
You can include the local CMDB if you have configured external Symantec CMDBs that are not part of the same hierarchy. However, if the local CMDB is part of the hierarchy for inventory replication, you may encounter some duplicate information if you include this local CMDB. To avoid duplication of data and still process the local CMDB, you must use the Manage Cube Inclusion Settings page.