Applies to: Exchange Server 2010 SP3, Exchange Server 2010 SP2
Topic Last Modified: 2011-04-22
You can recover a lost server by using the Setup /m:RecoverServer switch in Microsoft Exchange Server 2010. Most of the settings for a computer running Exchange 2010 are stored in Active Directory. The /m:RecoverServer switch rebuilds an Exchange server with the same name by using the settings and other information stored in Active Directory.
Recovering a lost Exchange server is often accomplished by using new hardware. However, you can also use an existing server.
This topic shows you how to recover a lost Exchange 2010 server that isn't a member of a database availability group (DAG). For detailed steps about how to recover a server that was a member of a DAG, see Recover a Database Availability Group Member Server.
|If Exchange is installed in a location other than the default
location, you must use the /TargetDir switch to specify the
location of the Exchange binary files. If you don’t use the
/TargetDir switch, the Exchange files are installed in the
default location (%programfiles%\Microsoft\Exchange
To determine the install location, follow these steps:
- The server on which recovery is being performed must be running
the same operating system as the lost server. For example, you
can't recover a server that was running Exchange 2010 and Windows
Server 2008 on a server running Windows Server 2008 R2, or vice
- The same disk drive letters on the failed server for mounted
databases must exist on the server on which you're running
- The server on which recovery is being performed should have the
same performance characteristics and hardware configuration as the
- The following procedure can be run on an Exchange 2010 server
that has the Client Access, Hub Transport, Mailbox, or Unified
Messaging server roles installed. You can't use Setup
/m:RecoverServer to recover an Edge Transport server. For
information about preserving Edge Transport server settings and
applying saved settings to an Edge Transport server, see Understanding Edge
Transport Server Cloned Configuration.
Recover a Lost Exchange Server
You need to be assigned permissions before you can perform this procedure. To see what permissions you need, see the "Exchange infrastructure permissions" section in the Exchange and Shell Infrastructure Permissions topic.
- Reset the computer account for the lost server. For detailed
steps, see Reset a Computer Account.
- Install the proper operating system and name the new server
with the same name as the lost server. Recovery won't succeed if
the server on which recovery is being performed doesn't have the
same name as the lost server.
- Join the server to the same domain as the lost server.
- Install the necessary prerequisites and operating system
components. For details, see Exchange 2010 System
Requirements and Exchange 2010
- Log on to the server being recovered and open a command
- Navigate to the Exchange 2010 installation files, and run the
- After Setup has completed, but before the recovered server is
put into production, reconfigure any custom settings that were
previously present on the server.