Upgrading from v2020, v2020 R2, and v2021

  1. Check that you have the RTM version and the latest update installed.
  2. Check that you have added the following parameters on the .INI file to all your server nodes before you start the online upgrade:

    3. v8.2: [LAN]EarliestLegacyVersion = 8200.

    Restart the servers after adding the parameter for the changes to take effect.

  3. Shutdown runtime on the primary server.
  4. Upgrade Power Operation on this server according to the Offline upgrade.
  5. Set up the Server Password in the Configurator, Power Operation, Computer Setup page.
  6. Configure the System Management Server and encryption settings. The encryption settings need to be configured to align with the settings as they were in your previous version, otherwise communications may not be successful.
  7. Place the backed-up Alarm database in the [CtEdit]Data directory. This will allow a quicker synchronization of alarm servers.
  8. Restart the primary server.
  9. Check the Server Authentication section of the Computer Setup page in Configurator, under Power Operation. If you have selected Configure Server Password, make sure you use the same password as the one defined in previous steps.
  10. Shutdown runtime on the standby server.
  11. When the newly upgraded version 2020 R2 server assumes the primary server role it will migrate the entire alarm database to the new format, and you should now be able to see Alarm Summary data on all migrated clients.
  12. Upgrade Power Operation on this server according to the offline upgrade procedure.
  13. Set up the Server Password in the Configurator, Power Operation, Computer Setup page.
  14. Configure your System Management Server and encryption settings based on your requirements.
  15. Restart the standby server, which is now upgraded.
  16. Check functionality of the system as a whole.
  17. Test redundancy by switching off the primary server and checking that the standby takes over and clients switch over.
  18. On both servers, remove upgrade-related parameters that were set in prerequisites for an Online upgrade and parameters noted in Troubleshooting online upgrade.