Tuning with SQL DB and high number of revisions kept

I'm on 12.1 RU2.
SEP Manager installed in one server, SQL DB configured in another server.

I've set 90 revisions kept by the manager, in order to maintain the "delta" functionality in a 30 days range.

I wonder if I've to change some settings into the SQL DB (such as FG_CONTENT and so on) in order to avoid problems of any kind.

If I read here http://www.symantec.com/business/support/index?page=content&id=HOWTO53175 I don't see reference to SQL.
But... if I read here http://www.symantec.com/business/support/index?page=content&id=TECH153221 I read both definitions and SQL so I'm a little bit worried.

Thanks!