Microsoft also provides
several tools for testing your deployment. These tools should be used to test
your environment before considering its production. The tools include:
?– Exchange Server Jetstress Provides ability to test performance of your
disk drives by adding large workloads to them.
?– Exchange Server Stress and Performance Provides the ability to simulate
hundreds or thousands of simultaneous client sessions connecting to
your Exchange servers.
?– Exchange Server Best Practices Analyzer (BPA). The Exchange Server
Best Practices Analyzer checks the confi guration of your Exchange
Server deployment to ensure best practice confi gurations are being
followed. The BPA makes recommendations for correcting any known
confi guration problems.
320 Chapter 10 ??? Integration with Exchange 2007 Unified Messaging
Mailbox Server Role
The Mailbox server role in Exchange Server 2007 is where mailboxes for users are stored. The
Mailbox server role in Exchange 2007 is synonymous with a back-end server in Exchange 2003.
A mailbox server role must exist in an Exchange 2007-only server environment. The Mailbox
server role can exist on the same physical server as other server roles.
Hub Transport Server Role
The Hub Transport server role performs the task of internal message routing and encryption. The
Hub Transport server role also is in charge of applying internal policies on message routing.
The Hub Transport server role can exist on the same physical server as other server roles.
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