Datasheet

Discontinued Features 13
Discontinued Features
In any new release of a software product, discontinued or de-emphasized features are
inevitable. The items that follow in no way represent every change that has occurred in
Exchange Server 2010, but it does represent some of the most prominent changes.
Features That Have Been Removed
The following key features and functionality have been removed from Exchange Server 2010:
Storage groups are no longer a feature in Exchange Server 2010. The concepts of a
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database, log files, and a checkpoint file are still valid, but they are now just referred to
as a database. You can think of an Exchange 2010 mailbox database as being a single
database in a single storage group.
Exchange Server 2007 had LCR, CCR, and SCR—three different forms of replication.
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All three of these features are no longer available in Exchange Server 2010.
Mailbox databases no longer save storage space by storing the same item in multiple mail-
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boxes using single instance storage. This means that when you send a 1 MB message to
100 recipients, the database could potentially grow by 100 MB. This may have an impact
on storage space, however the performance improvements made to the database schema
that caused this feature to no longer be feasible are an excellent trade off.
Table 1.1 shows the discontinued Exchange Server protocols.
Table 1.1 Discontinued Exchange Server 2003 protocols
Feature Replacement
X.400 and Network News Transfer
Protocol (NNTP)
No migration plan. If this functionality is required,
you will need to keep Exchange Server 2003 in your
environment.
SMTP virtual server instances Has been replaced with Exchange Server 2010 SMTP
connectors.
In addition, some of the Exchange 2003 connector features have been discontinued.
Table 1.2 lists them.
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