An Exchange Standard server can host 5 databases. Period. An instance of a DAG is a database. It is mounted - it may not be active, but it is mounted.
A standalone mailbox database is a database. A PF database is a database. You can have 5 of the above on a standard server, in (almost) any combination. If you have more than two standard mailbox servers, yes you can have more than 5 databases, but still only 5 per server. If everyone in your Exchange 2007 organization is using Outlook 2007, you can go ahead and get rid of your PF database(s) now, as long as you are web publishing the OAB. Regards, Michael B. Smith Consultant and Exchange MVP http://TheEssentialExchange.com From: Ehren Benson [mailto:benso...@pa.msu.edu] Sent: Wednesday, February 17, 2010 2:24 PM To: MS-Exchange Admin Issues Subject: Number of databases for exchange 2010 standard with dag Hi, First off, I want to let you know I found this http://www.microsoft.com/exchange/2010/en/us/Licensing.aspx and understand everything there, that Exchange 2010 standard can host 1-5 databases. What I wonder is this. If we are using dag with 2 servers can we still have only 5 databases in the organization so that there is no chance of more than 5 being mounted on any one database server at any given time? Or is it possible to have more if you have two database servers. Say for example a total of 10 databases where each server has 5 mounted and 5 copies (copies of the 5 that are mounted on the other server). And if that were the case, and one server were to fail, would all 10 be able to mount on one server? Something inside me is telling me this wouldn't work. Also one other quick thing. In our Exchange 2007 organization we have a public folder database but we do not really use public folders at all. Once everyones mailboxes are migrated to 2010 can we just abandon that or do we need to migrate/copy something out of it into the 2010 org? Thanks so much! Ehren J. Benson, MCSE Windows Systems Administrator Department of Physics and Astronomy Michigan State University 1209 A Biomed Phys Sci benso...@pa.msu.edu<mailto:benso...@pa.msu.edu> 517-884-5469
