Business Object Audit database limits

Hi All,

we are using the business objects 3.1 and SQL server 2008 for DB, now we are planning to upgrade business objects to 4.1.

Before upgrading we are preparing the inventory list for all reports, universes. while checking the activity universe reports we are seeing only 6 months data. Please let us know if default settings in CMC??

Can you please let us know if any audit database storage limit ??

Thanks,

Rajesh