Exchange Server 2010: Migration from Exchange Server 2007

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You need not migrate completely to an Exchange Server 2010 environment from the earlier Server 2007 one. Instead, you can transition gradually from the earlier system to the new one in a gradual manner. Server 2010 can co-exist with 2007. You start by ensuring that the infrastructure requirements for Exchange Server 2010 are available.

Firstly, all the Exchange servers in use must be compatible with Server 2010. Server 2000 is not directly compatible with 2010; instead, the 2000 must be upgraded to 2003 or 2007 environments before it can co-exist with 2010. If you do have a 2000 server, the preferred option is to upgrade it to 2003 and then to 2010 gradually.

Exchange Server 2010 is a 64-bit only system, and the processor must be 64-bit whether it is from Intel or AMD. Memory requirements will vary depending on the features of Server 2010 that are installed. Disk space requirements must also be met, particularly for planned growth. The Operating System must also be a 64-bit based system, such as Windows Server 2008 with SP2.

There are other requirements which are documented at

Planning the Move

In addition to ensuring that the required infrastructure is present, migrating to Server 2010 also involves a lot of planning (and actions, such as moving the mailboxes to the new system).

In other articles, we discuss the planning issues, such as the topologies suited to different organizations, capacity requirements and mailbox server planning. A complete discussion of planning the transition from a 2007 environment to 2010 is available at

The move from earlier server environments to an Exchange Server 2010 environment is not simply a matter of installing the new server software. The 2010 version offers numerous capabilities which can be tapped only if the installation is planned in detail after referring to the resources (and related ones) mentioned above.

Get a clear idea of the new features available in the 2010 version and then look at the possibilities of exploiting these to obtain the powerful new benefits they provide, in the particular context of your particular organization.

Once a plan is in place, the detailed documents at the Microsoft Technet resource will help you implement the plan on the ground.

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