Microsoft® Exchange Server 2007 Administrator's Companion

Transition Options

You can choose to perform your transition in a number of ways:

• Mimic, as closely as possible, your existing Exchange environment. Install the exact same number of Exchange Server 2007 servers as you have Exchange Server 2003 servers and perform a 1:1 migration of user mailboxes between servers.

• Use the transition as an opportunity to "clean up" your existing Exchange environment. Over time, large organizations in particular tend to become less organized.

• Begin the process of consolidating your Exchange environment onto fewer servers. The 64-bit architecture of Exchange Server 2007 provides for much larger amounts of RAM. Between this and other improvements to the product, Exchange Server 2007 can reliably support significantly ...