# All Environments

- The Mainframe HUB must be configured to use the Mainframe Logger and run in the same LPAR as the Substation ES, Batch, CICS or IMS region.
- The 4 character HUB name "YODA" is determined from a DDName as follows:

      //HUBYODA DD DUMMY

- If the HUB name is not specified, the LPAR name is used as the HUB name.
- TIBCO recommends to use a specific name for the HUB that is different from the name of any running LPAR, especially when different versions of the TIBCO software stack execute in the same LPAR.

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