
Configuring the Mailbox
Server Role
The Mailbox role is at the heart of the server roles. Mailbox and public folder data is stored on
the Mailbox role. Other processes, such as managed folders and address book generation run
on the Mailbox role. Unlike previous versions, the mailbox server does not send or receive mail
without going through a hub transport.
The Mailbox role can be configured for high availability using traditional clustering or a few new
options. High - availability options are discussed in Chapter 12 .
This chapter covers:
❑ Creating a mailbox store and database
❑ Configuring a mailbox store and database
❑ Recovering mailbox data with Recovery Storage Groups
Storage Groups
Exchange groups mailboxes into logical units called databases. Exchange groups databases
together to share a set of transaction log files and this database group is called a storage group.
New to Exchange Server 2007 is the ability to have up to 50 databases distributed in up to
50 storage groups. However, there is still a maximum of five databases in one storage group.
It is a best practice to have one database per storage group. Another change from previous
versions is that the streaming database has been removed.
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