Please go to our Mailbox Server Role Storage Requirements Calculator updates tracking page to see what is in this new version! There are a lot of usability improvements as well as a whole new section on Storage Design.
The calculator uses all the recommendations outlined in the following articles, and thus we recommend you read them before utilizing the calculator:
- Planning Storage Configurations – http://technet.microsoft.com/en-us/library/bb124518.aspx
- Planning Memory Configurations – http://technet.microsoft.com/en-us/library/bb738124.aspx
- Understanding Exchange Server 2007 I/O improvements from 64 bit – http://msexchangeteam.com/archive/2006/09/08/428860.aspx