Patch or update a Back End Server or Standard Edition server in Skype for Business Server

APPLIES TO: 2015 2019 Subscription Edition

Summary: Learn how to install an update or patch on a Back End Server in Skype for Business Server.

This article explains how to install an update on an Enterprise Edition Back End Server or a Standard Edition server.

If a Back End Server is down for at least 30 minutes while you're upgrading it, users might then go into resiliency mode. When the upgrade is finished and the Back End Servers again connects with the Front End Servers in the pool, users are returned to full functionality. If the upgrade takes less than 30 minutes, users won't be affected.

To update a back end server or Standard Edition server

1. Sign in the server you're upgrading as a member of the CsAdministrator role.

2. Download the update and extract it to the local hard disk.

3. Start the Skype for Business Server Management Shell: Select Start, select All Programs, select Skype for Business, and then select Skype for Business Server Management Shell.

4. Stop Skype for Business Server services. At the command line, type:

   Stop-CsWindowsService
   

5. Stop the World Wide Web service. At the command line, type:

   net stop w3svc
   

6. Close all Skype for Business Server Management Shell windows.

7. Install the update.

8. Start the Skype for Business Server Management Shell: Select Start, select All Programs, select Skype for Business, and then select Skype for Business Server Management Shell.

9. Stop Skype for Business Server services again to catch Global Assembly Cache (GAC) -d assemblies. At the command line, type:

   Stop-CsWindowsService
   

10. Restart the World Wide Web service. At the command line, type:

    net start w3svc
    

11. Apply the changes made to the SQL Server databases by doing one of the following:

    • If this is an Enterprise Edition Back End Server and there are no collocated databases on this server, such as Archiving or Monitoring databases, then type the following at a command line:

    Install-CsDatabase -Update -ConfiguredDatabases -SqlServerFqdn <SQL Server FQDN>
    

    • If this is an Enterprise Edition Back End Server and there are collocated databases on this server, then type the following at a command line:

    Install-CsDatabase -Update -ConfiguredDatabases -SqlServerFqdn <SQL Server FQDN>  -ExcludeCollocatedStores
    

    • If this is a Standard Edition server, type the following at a command line:

    Install-CsDatabase -Update -LocalDatabases