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Restoring a Mirrored Enterprise Edition Back End Server - Mirror

Lync Server 2013
 

Topic Last Modified: 2013-02-19

If you have an Enterprise Edition Back End Server in a mirrored configuration and only the mirror fails, follow the procedures in this section. If both the primary database and mirror fail, see Restoring an Enterprise Edition Back End Server. If only the primary fails, see Restoring a Mirrored Enterprise Edition Back End Server - Primary. If the database hosting the Central Management store fails, see Restoring the Server Hosting the Central Management Store. If an Enterprise Edition member server that is not the Back End Server fails, see Restoring an Enterprise Edition Member Server.

We recommend that you take an image copy of the system before you start restoration. You can use this image as a rollback point, in case something goes wrong during restoration. You might want to take the image copy after you install the operating system and SQL Server, and restore or reenroll the certificates.

  1. From a user account that is a member of the RTCUniversalServerAdmins group, log on to a Front End Server.

  2. Start the Lync Server Management Shell: Click Start, click All Programs, click Microsoft Lync Server 2013, and then click Lync Server Management Shell.

  3. Uninstall mirroring. First, type the following cmdlet:

    Uninstall -CsMirrorDatabase -DatabaseType User -SqlServerFqdn <PrimaryServerFqdn> -SqlInstanceName <SQLInstance> -verbose
    

    For example:

    Uninstall -CsMirrorDatabase -DatabaseType User -SqlServerFqdn server4.contoso.com -SqlInstanceName archinst -verbose
    

    Do this for all database types on this server.

  4. Create a clean or new server that has the same fully qualified domain name (FQDN) (DB1.contoso.com) as the failed computer, install the operating system, and then restore or reenroll the certificates. This server will function as the new mirror.

  5. From a user account that is a member of the RTCUniversalServerAdmins group, log on to the new server.

  6. Install SQL Server 2012 or SQL Server 2008 R2, keeping the instance names the same as before the failure.

  7. From a user account that is a member of the RTCUniversalServerAdmins group, log on to a Front End Server.

  8. Use Topology Builder to install the mirror database. Perform the following:

    • Start Topology Builder: Click Start, click All Programs, click Microsoft Lync Server 2013, and then click Lync Server Topology Builder.
    • Right-click the Lync Server 2013 node, click Topology, and then click Install Database.
    • Follow the Install Database wizard. On the Create databases page, select the databases that you want to recreate.
    • Follow the wizard until a prompt of Create Mirror Database appears. Select the database that you want to install and complete this process.
      tipTip:
      Instead of running Topology Builder, you can use the Install-CsMirrorDatabase cmdlet to configure mirroring. For details, see the Lync Server Management Shell documentation.
 
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