Microsoft® Exchange Server 2010 Inside Out

An interesting philosophical question

If DAGs work the way that Microsoft expects them to and deliver a robust high availability environment for Exchange, the theory is that we will be able to change the attitude toward backup and restore that has existed since the first version of Microsoft Exchange. Backups have been the administrator’s solution to logical and physical database corruptions that enable a system to be returned to a particular point in time or to recover data when items in mailboxes or complete mailboxes are deleted in error. Microsoft Exchange Server 2010 creates a new scenario where:

• Databases can have many copies, so a failure on one server does not render a database inaccessible.

• Larger mailboxes (protected by replicated databases), ...