n is an integer in the range 0—1,000,000 (MB). The default value is 0.
MaxIRISTempSizeAtStart is the maximum size in megabytes of the IRISTEMP database when the instance is restarted. When the instance restarts, the IRISTEMP database is truncated to this size. If 0, the IRISTEMP database is not truncated.
Changing This Parameter
On the Startup page of the Management Portal (System Administration > Configuration > Additional Settings > Startup), in the MaxIRISTempSizeAtStart row, select Edit. Enter a number of megabytes.
Instead of using the Management Portal, you can change MaxIRISTempSizeAtStart in the Config.Startup class (as described in the class reference) 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).