I have adjusted the registry for mailbox store size to 50 gb. I also increased the public to 20 gb. After online defrag databases only show 3 gb free for mailbox store and 5 mb for public. Priv1.edb and stm files add up to 29 gb. I should have 21 gb free. Public added up to 60mb. I should have plenty of spacde there too. Why don't the numbers jive?

don't worry about event ID event id 1221 that only gives the number after your database finished online defragmentation... It doesn't mean that your database has 3GB to grow. Make sure you reboot your Exchange server after you made the registry change. http://blogs.msdn.com/jeremyk/archive/2004/04/09/110553.aspx