Datasheet

16 Chapter 1
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Preparing for the Exchange Installation
7.
If multiple Active Directory sites must be crossed, the message is delivered to a Hub
Transport server along the path and then passed along to a Hub Transport server in the
destination site.
8. If there are no operating Hub Transport servers in the destination site, the message will
be queued on a Hub Transport server in the site closest to the one where the destina-
tion Mailbox server resides. The message will not be delivered until a Hub Transport
server in the destination site is available to deliver it.
9. When the message reaches the Hub Transport in the destination site, that Hub Trans-
port server assumes responsibility to deliver the message, and the message is sent to the
appropriate destination Mailbox server.
What’s New in Exchange Server 2007?
With any new release of an established product like Exchange Server, Microsoft includes
new (and improved) features that benefit both the administrative side of the product and
the end-user experience. I’ll briefly highlight some of the key features that are new or
improved in Exchange Server 2007 (although this list is certainly not all-inclusive):
Exchange Management Console
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: The first, and most striking, change that many admin-
istrators with Exchange experience will notice is that the familiar Exchange System
Manager is gone and has been replaced by the completely redesigned Exchange Man-
agement Console (EMC). By examining the ways administrators worked and the tasks
they needed to perform, Microsoft designed the EMC to be as intuitive and workflow-
oriented as possible. The EMC also takes advantage of the improvements in Microsoft
Management Console 3.0. We will spend a good deal of our time together in this book
working with the EMC.
Exchange Management Shell
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: Another dramatic change from an administrative
standpoint is the Exchange Management Shell, which is a new command-line shell and
scripting environment for Exchange administrators. Any action that can be carried out
in the EMC can be performed just as easily in the Exchange Management Shell, and
many actions that an Exchange administrator will perform can be performed only from
within the Exchange Management Shell. You’ll see as you work with Exchange Server
2007 that almost every configuration action you perform in the EMC will present you
with the corresponding Exchange Management Shell code that is actually being used to
carry out those changes.
64-bit
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: Exchange Server 2007 is the first messaging platform to utilize the benefits of
64-bit hardware and operating systems fully. In fact, Exchange Server 2007 is available
for production use only in 64-bit versions. The amount of RAM available to be used
efficiently in 64-bit environments is significantly higher than in 32-bit environments,
thus allowing for more mailboxes and storage groups on a single Exchange server.