Disasters can range from losing all the data in every computer at a site, to losing the contents of a single user's mailbox.
It is important to consider how your deployment strategies influence your ability to recover from various disasters. When planning your Exchange 2000 deployment strategy, it is important to consider the benefits of reducing the impact that a single failure can have on your Exchange 2000 organisation.

For example, using disk mirroring for all the hard disks on your servers running Exchange 2000 ensures that the data in your Exchange 2000 organisation is protected in the event of a single hard disk failure. For more information about reducing single points of failure, see minimising single points of failure in Increasing Availability and Reliability.

The information in this article applies to:

• Microsoft Exchange Server 2003 Enterprise Edition
• Microsoft Exchange Server 2003 Standard Edition
• Microsoft Windows Small Business Server 2003, Premium Edition
• Microsoft Windows Small Business Server 2003, Standard Edition
• Microsoft Exchange 2000 Server