Datasheet

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Introduction to Exchange Server 2010
You can look at the entire list of new and discontinued features in
Exchange Server 2010 by visiting the Microsoft Exchange product site at
http://www.microsoft.com/exchange/2010/en/us/whats-new.aspx.
Client Benefits to Exchange Server 2010
Microsoft spent much time listening to its customers, consultants, and messaging profes-
sionals to find out what features were missing or needed to be enhanced from earlier ver-
sion of Exchange. The benefits of this feedback are shown in the many new features and
enhancements. While we will not cover every modification, we will review some of the
major changes.
Large Mailbox Support
Previous versions of Exchange required a significant investment in memory and a robust
storage infrastructure to make large mailbox support a reality. Even if organizations had
enough memory and storage to support large mailboxes, performance degradation typically
started when mailboxes grew beyond 2 GB in size or when the individual folders contained
more than 5,000 items. Outlook 2007 SP2 included some changes in how the software
handled large mailboxes, making it more efficient to support mailboxes that grew larger
than 10 GB. These improvements were helpful but still didn’t solve all the issues or specific
errors that might be encountered as mailboxes approached 20 GB in size.
Exchange 2010 reduces the I/O requirements of the underlying storage by some 70 percent
over Exchange 2007. This results in optimization for mailboxes over 10 GB in size and folders
with 100,000 items. Microsoft now supports, and even recommends, deploying Exchange on a
properly sized, low-cost SATA-based storage. This can represent a significant cost savings and
allow organizations to size Exchange for capacity instead of performance.
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