How to Run Exchange in Disaster Recovery Mode

This topic explains how to run Exchange in Disaster Recovery mode.

Procedure

Insert the Microsoft Exchange CD.
Click Start, click Run, and then type <drive>:\SETUP\I386\Setup.exe /disasterrecovery, where <drive> is the CD-ROM drive.
On the Welcome page, click Next.
On the Components Selection page, under Action, make sure that Disaster Recovery is selected for all components that were originally installed .

Running Exchange setup in disaster recovery mode

If any component that was originally installed does not have Disaster Recovery selected, you must manually select them. You also must know which administrative group the server was originally a part of.

Install Exchange to the same drive and directory as it was installed on the damaged server. By default, the Setup program correctly selects this information if you restored a Windows backup set first. Also, make sure that all the drive letters on which databases and log files were kept are available. You can use Exchange System Manager on another Exchange server in the same organization to determine what paths were used for storage group files and database files on the server being recovered.
On the Components Summary page, click Next to reinstall Exchange in Disaster Recovery mode.