Chapter 4. Designing and Planning Coexistence and Migrations
The main subjects of this chapter are as follows:
Designing and planning migration of free/busy functionality
Designing and planning migration of public folders
Designing and planning migration of offline address books
Designing and planning migration of the Recipient Update Service (RUS) functionality
Designing an inter-forest migration strategy
Designing an intra-forest migration strategy
Coexistence with Exchange Server 2003
Designing and Planning Migaration of Legacy Exchange Features
You will need to migrate legacy Exchange features from Exchange Server 2003 to Exchange Server 2007 to preserve data and functionality for end users, to provide support for clients older than Outlook 2007, and to ensure interoperability during your migration to Exchange Server 2007. The primary legacy features you need to be concerned with are Exchange Server 2003 system folders, public folders, offline address books, and the Exchange Server 2003 Recipient Update Service.
Free/Busy Functionality
System folders in Exchange Server 2003 provide two of the legacy 2003 features that you will need to migrate to Exchange Server 2007. These 2003 system folders provide free/busy information, which Exchange Server 2003 uses to determine users' availability when scheduling meetings. In Exchange Server 2007, the Availability service supplements or replaces these ...
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