When you run eseutil /d
against a database to defragment it, the streaming file associated with the database is automatically defragmented. This is the default behavior.
For example, if you run the following command at a command prompt
eseutil /d c:\exchsrvr\mdbdata\priv1.edb
the Priv1.edb and Priv1.stm files are defragmented. If you do not want the streaming file to be defragmented, include the /i