n is an integer in the range 0—4079 (MB). The default value is 1024.
FileSizeLimit is the maximum size of the journal file, in megabytes. When a journal file grows to this size it is closed and a new journal file is created. For more information about journal file rollover, see the Data Integrity Guide.
Changing This Parameter
On the Journal Settings page of the Management Portal (System Administration > Configuration > System Configuration > Journal Settings) , in the Start new journal file every (MB) row, enter a number of megabytes.
Instead of using the Management Portal, you can change FileSizeLimit in the Config.Journal class (as described in the class reference), from the ^JOURNAL Utility (as described in Update Journal Settings Using ^JRNOPTS), or by editing the CPF in a text editor (as described in the Editing the Active CPF section of the “Introduction to the Configuration Parameter File” chapter in this book).