Concept. Disaster Recovery is purely based on the Data which is available. By which we can recover an Exchange Server. This data is available in any one of the Domain Controller which is reachable at the time of recovery. Exchange Configuration information is available on a Domain Controller under Configuration Partition. Disaster Recovery is not possible only when there is only one Exchange Server which is also a Domain Controller. It is always a best practice to have your Exchange Server running on a member server. This is applicable for Exchange Server 2. Although the steps to recover is little different, however the concept remains same. Best Practices. Always maintain a proper backup of AD System State and Exchange Database Files. Scenario. Domain Name MSEXCHANGETEAM. INDC Name DC1. Exchange Server 2. MBXWindows Version Windows Server 2. R2 SP1. Forest Functional Level Windows Server 2. R2. Domain Functional Level Windows Server 2. R2Prerequisites. Functional Domain Controller Should be Reachable Same Sever name and Operating System for Recovery. DO NOT ADD THE MACHINE TO DOMAIIN. Download Movie Mother Love Me Once Again Korean. How to check what was the operating system the server was running before crash and its name. Figure 1. 1 Properties of crashed sever using Active Directory Users and ComputersAssign same static IP address. How to get the IP address. Go to any AD Integrated DNS server and check for the host name of the crashed server. Make a note of the IP address and assign the same address. Same drive letters are mandatory. Else recovery will fail. How to get drive letters of crashed server. Figure 1. 2 In ADSIEDIT go to the location as shown above. Go to the properties of Mailbox Database 1. Exch. EDBFilems. Exch. ESEParam. Log. File. Pathms. Exch. ESEParam. System. Path. These attributes will have database file path and log file path. Caution Working with ADSIEDIT requires core understanding on how the tool works. If you are not confident of handling the tool then it is recommended to have an expert advice. Please be careful. Before adding the server to Domain. Go to Active Directory Users And Computers Right Click the crashed server and Select Reset Account as shown below. Figure 1. 3 Resent Account. In figure 1. 3 once the Account is reset then we will be able to join the same server to the domain. Now that we have added the machine to domain. Its time to check if Exchange information is available on Domain. To check that login to any one domain controller and open ADSIEDIT. Caution Working with ADSIEDIT requires core understanding on how the tool works. If you are not confident of handling the tool then it is recommended to have an expert advice. Please be careful. To open ADSIEDIT go to Start Administrative Tools ADSIEDITIn the console right click ADSIEDIT Select Connect Too Select a well Known Naming Context In the drop down menu select Configuration. Below is the DN of the server object which was crashed. Figure 1. 4 DN of Exchange Server. Figure 1. 5 Location in GUI. Now that we have confirmed that Exchange Server Object resides in AD and its safe to move further by running Disaster Recovery. Before running Disaster Recovery please ensure that the required Roles and Features are installed as shown below. Open Windows Powershell and type the below commands. Import Module Server. Manager. Add Windows. Feature Desktop Experience, NET Framework, NET HTTP Activation, RPC over HTTP proxy, RSAT Clustering, RSAT Web Server, WAS Process Model, Web Asp Net, Web Basic Auth, Web Client Auth, Web Digest Auth, Web Dir Browsing, Web Dyn Compression, Web Http Errors, Web Http Logging, Web Http Redirect, Web Http Tracing, Web ISAPI Ext, Web ISAPI Filter, Web Lgcy Mgmt Console, Web Metabase, Web Mgmt Console, Web Mgmt Service, Web Net Ext, Web Request Monitor, Web Server, Web Stat Compression, Web Static Content, Web Windows Auth, Web WMIPost installing the roles and features restart the server and install the software as listed in Microsoft Site. Please click here for installing the required software. You also have to install the updates listed in this article KB9. Now its time to create the folder path as listed in the attributes as shown below. Exch. EDBFile. PathC Program FilesMicrosoftExchange ServerV1. MailboxMailbox Database 1. Post creating the folder path restore the data files as shown below. C Program FilesMicrosoftExchange ServerV1. MailboxMailbox Database 1. Mailbox Database 1. Note Database file path and log file path may differ in practical scenario. Download Exchange Server 2. Open Windows Powershell and type the below command. Figure 1. 6 Recover Server Switch. Figure 1. 7 Configuring Prerequisites. Figure 1. 8 Setup completed Successfully. Disaster Recovery is completed and its time to get the Mailbox database in place. Restore the database and mount the store. Figure 1. 9 Mount the Database by selecting the option as shown above. Figure 1. 1. 0 Emails are restored and users are able to send and receive emails. Disaster Recovery is completed and we are able to send and receive emails. Important Points to Remember. Good Exchange Database Files backup is mandatory. Its easy to recover the server if its a member server. Healthy Active Directory can help us recover the server faster. Happy Recovery. 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