Servigistics InService Upgrade > Updating Servigistics InService to a New Release > Upgrading Servigistics InService in a High—Availability Environment
  
Upgrading Servigistics InService in a High—Availability Environment
This section provides the steps to upgrade Servigistics InService in a highly available (24/7) environment. The process mentioned in the subsequent sections is supported only from Servigistics InService 7.1 and onwards, and cannot be used for upgrading from 6.x to 7.1.
Limitations and Expectations
Ensure that two ports are available on every Servigistics InService server. Original port number must be defined in first setup. The UI of the new environment must be accessible at a port that is increased by 1000 than the previous installation. For example, if the old installation is using port 8080, the new environment must be accessible at 9080.
The upgrade environment must be installed on the same server as the old environment.
The new Servigistics InService installation must be of the same type as old (Publisher, Viewer, or Core).
After the Upgrade Data task is run, the old Publisher must not be used.