Exchange administrators always need to be prepared against server crashes and data loss situations, though Exchange is far more secure because of Database Availability Groups(DAGs). There are different recovery methods by which administrators can recover a server even after crashes. Due to the integration with Active Directory, it is possible to rebuild the configuration of the Exchange from Active Directory. Also, many professional tools can be used to recover the lost Exchange data to different locations in different formats.
Recover the lost Exchange Server
Active Directory is the place where all the Exchange Server settings are stored. So, it is possible to rebuild the configuration of the Exchange environment from Active Directory. Here is how you can do this:
Reset a Computer Account:
To do this, you must be a member of Domain Admin, Enterprise Admin, or Account Operators. Use the following method to reset the computer account:
Follow Start>>Control-Panel >> Administrative Tools >> Active Directory Users and Computers.
Click Computers.
Go to Details and click Reset Account.
After installing the OS on the new server, give it the same name as that of the lost server.
NOTE – It is essential to name the new server as the older one. Otherwise, it will not work correctly.
Add the sever to the domain of the lost server.
Install all the prerequisites for Exchange Server 2016.
Start the command prompt after login on to the Exchange Server, and run the following command –
Note: Follow the same procedure for Exchange 2013 and 2010 also. For Exchange 2010, you need to run the following command –Setup /m:RecoverServer
Recover a DAG member Server
The method mentioned above is used to retrieve a lost Exchange Server which is not a member of a Database Availability Group (DAG). There is a different method to recover a DAG member server:
To recover any replay lag from mailbox database copy, run the following command –
After you have rebuilt the Exchange Server, it becomes essential to recover the lost Exchange data too. Exchange database information can be recovered from an offline EDB file. Thus, you can recover your important emails, contacts, and notes. For this, you can take the assistance of Kernel for Exchange Server. This Exchage Recovery tool helps to recover complete Exchange mailbox data and save EDB to PST, Live Exchange, and Office 365 quickly.
The manual method is tricky by not easy for all users to proceed. I recommend Kernel for Exchange Server for this to all users to make this operation quick and simple.