Hello all: We upgraded the hard drives in our Exchange 2003 server to accomodate more space for our mailboxes. We recently upgraded from 2000 and it is my understanding that the size of the databases can grow to 72GB with 2003 (up from the 16 in 2000). However, after restoring the IS to the new drives our stm file grew exponentially (from 1GB to 14GB) and now the IS dismounts itself randomly saying that at 19GB we are over the limit. So really we have two issues, the large stm and now the dismounting of the store, which I don't think should be happening at all. Thanks, John

Sounds like you're using Exchange 2003 Standard edition. You'll need to install service pack 2 and do the following: http://technet.microsoft.com/en-us/library/6c4ce7bb-5289-4221-a87c-b9c78ab7c09c.aspx