# Data Exchange

## Managing Media Types

| All transfer media types available for data exchange processes are defined in the EER Media list.
| To open the list, select Manager > Tools > Replication > Data Exchange (EER) > Media.
| The following fields are available in this list:
| Media: Name of the transfer media type; Path: Directory path of the files to be transferred with the data exchange process; Type: The system default entry of this field is EER; Comment: Additional information;
| A sub-directory must be created for every specified media type (e.g. "Tape"). At the originating site, this directory must be created in the export directory, respectively in the acknow directory for the recipient site.
| Please note that identical names must be used in the mask and on the operating system level (names are case sensitive!).
| eer/export/Tape or eer/acknow/Tape