Upgrading to Silk Central 21.0

The Silk Central 21.0 setup program automatically removes the existing installation before upgrading to Silk Central 21.0. Do not use the Windows Add or remove programs feature to remove the previous Silk Central installation, as this would delete your customized configuration files.

  1. Make a backup copy of your Silk Central database before you start upgrading to a new version.
  2. If you have enabled SSL, make a backup copy of your certificate file. Re-import the certificate into the keystore C:\Program Files (x86)\Silk\Silk Central 21.\instance_<instance number>_<instance name>\lib\jre64\lib\security\cacerts. For additional information, see Enabling Secure Web Server Connections with SSL.
  3. Install Silk Central. This will install the NGINX proxy and the Instance Administration. To install an execution server on the same computer as one of the previously mentioned components, install the execution server together with the other components. The database settings are automatically updated. For detailed information about advanced settings in the configuration files, see Configuring Advanced Settings.
    Note: For large databases, a small database transaction log size may result in an error during the update. To prevent the error, set the size of the database transaction log to 5 GB.
  4. When the installation has completed, open a browser and navigate to the URL http://localhost:19100/ (if it doesn't open automatically).
    Note: You cannot access the Instance Administration page from a remote computer.
    The Instance Administration page appears. At this point you should reset your browser cache, otherwise fixes in JavaScript and style sheets may not get activated.
  5. In the Version column, click the Upgrade to <version> link start the upgrade. A dialog appears to activate maintenance mode.
  6. Enter a notification text that users will see when they try to access Silk Central, for example: Silk Central is currently unavailable as we're performing updates. The system will be back online again shortly. Click Yes to activate maintenance mode and start the update.
  7. Once the update has completed, click Start to start the instance again.
Repeat the Instance Administration steps for each instance that you want to update.
Tip: Remind your users to reset their browser cache, otherwise fixes in JavaScript and style sheets may not get activated.
Parent topic: Installing Silk Central Server
Related concepts
Connecting to a Database
Related tasks
Installing Silk Central
Installing a Windows Execution Server