You must create a connection for each source database that you want to archive data documents from. One source database is the database that stores the documents that you want to archive, the production database. For restore jobs, the source database is the history database, where the data was originally archived.
There are two types of source connections, one to archive data from the production database to the history database, and the other from any database to the file archive.
You must also create a target connection for each database that you want to archive data to. The target database is the location where you want to archive data to.
There are two types of target connections, a connection to a target database, or to a file archive. The first one is used for mid-term storage, whereas the latter is used for long-term storage.