Open topic with navigation

Upgrade Multi-Server ClearSCADA with No Clients

To upgrade ClearSCADA servers that have no clients:

  1. First, undertake the appropriate preparation (see Preparing to Upgrade ClearSCADA).

    With correct preparation, you will:

    • Find out about any version-specific details relating to your current version and the new version of ClearSCADA.
    • Make a backup which can be used to restore your system should an error occur
    • Obtain the required upgrade files so that the upgrade can be completed as efficiently as possible.
  2. Shutdown ClearSCADA on your Standby Server.

    You need to shutdown the Standby server first because:

    • The installation process requires the ClearSCADA server to be shutdown.
    • Upgrading the Standby servers before the Main server reduces the number of Changeovers required. As a result, the upgrade process is more efficient. This is especially important with some simple drivers, as there can be a loss of data during the Main-Standby Changeover. By reducing the number of Changeovers, you minimize the amount of potential data loss.

    When you upgrade a multi-server architecture, you will need to stop the Main server so that you can install the upgrade. When you stop the Main server, a Changeover occurs automatically, and one of the Standby servers switches to become Main.

    During the Changeover, the drivers on the new Main server will start-up and begin scanning their devices. On larger systems, it can take a certain amount of time for the drivers to start. This can result in there being a delay before ClearSCADA can resume scanning the devices again.

    By upgrading all of the Standby servers before the Main server, you can apply the upgrades with just one Changeover taking place. This minimizes the amount of time that the drivers are unable to scan their associated devices.

    If you upgraded a Main server before the Standby servers, multiple Changeovers may be required. This is because you would have to shutdown more than one Main servers (when you shutdown the first Main server, one of the Standby servers will switch to Main).

    For information on shutting down a server, see Start and Stop the System Server.

  3. Install the ClearSCADA upgrade on the Standby server. To do this, run the Setup.exe file which is part of the ClearSCADA update. When you run Setup.exe, the installer will run and install the correct files for the server’s operating system (64 bit or 32 bit).

    Some publishers may re-package ClearSCADA to be part of another package. With these packages, you can use the installer for the package to install updates for ClearSCADA and the other product together.

  4. On the Standby server, install updates for any extensions. (Skip to step 5 if your system does not use extensions).

    To install an extension, run the installer application supplied with the extension upgrade.

    If you do not update all of the extensions, ClearSCADA may not run correctly.

  5. On the Standby server, install updates for any DDK drivers. (Skip to step 6 if your system does not use any DDK drivers).

    The ClearSCADA update includes the latest version of drivers created by Schneider Electric. However, if your system has DDK drivers created by a Third Party organization, you will need to install the appropriate updates. This is because DDK drivers are associated with a specific version of ClearSCADA—when you upgrade ClearSCADA, the DDK drivers need to match the new ClearSCADA version.

    If you do not update all of the DDK drivers, ClearSCADA may not run correctly.

  6. On the Standby server, install updates for any Third Party applications that are associated with a specific version of ClearSCADA. (Skip to step 7 if your system does not use any Third Party applications with ClearSCADA).

    For information on any Third Party applications that you use with ClearSCADA, please contact the publisher of the application.

  7. Upgrade the license on the Standby server. (see Upgrading a License).
  8. Restart ClearSCADA on the Standby server (for information on restarting a server, see Start and Stop the System Server). Wait for the server to fully synchronize with the Main server and go into the Standby state.
  9. Repeat steps 2-8 inclusive on each of the Standby servers.
  10. After completing the upgrades of all of the Standby servers, you should shutdown the Main server. This will cause a Changeover and one of the Standby servers will become the new Main server. As all of the Standby servers have been upgraded, they are able to synchronize with the new Main server (they all run the same version of ClearSCADA).

    The server that was formerly the Main server has now stopped.

  11. On the server that was formerly the Main server, install the ClearSCADA update, and update the extensions, DDK drivers, and Third Party applications as required. (Use the same techniques as when you upgraded the Standby servers).
  12. Restart the server that was formerly the Main server. It now runs as a Standby server and it synchronizes with the new Main server.

You have now upgraded your ClearSCADA servers. Next, you need to upgrade your ClearSCADA clients:

Disclaimer

ClearSCADA 2017 R2

© 2018 AVEVA Group Plc.  All Rights Reserved.

The Schneider Electric industrial software business and AVEVA have merged to trade as AVEVA Group plc, a UK listed company. The Schneider Electric and Life is On trademarks are owned by Schneider Electric and are being licensed to AVEVA by Schneider Electric.