Start Execution Engines

Before starting a Process Execution Engine you must have all projects deployed to that Engine properly migrated and re-published.

Follow this procedure for each Process Execution Engines you to start.

Login to the Process Administrator.
Click on Engines.
The Engines pane will appear, with a list of available engines. At this point, your engines should be stopped, showing a status of Not running.
Before starting the Engine for the first time after upgrading to 6.0, it is recommended you set the Engine Log severity level to INFO or below.
In the Engines pane, on the line of the engine you wish to start, click on the Start icon ().
The engine will start. If the engine starts successfully, a status of Ready will be shown.
Important: If this is the first time you start the Engine after upgrading to 6.0, you should check the Engine log file to ensure there are no errors. If the Log severity level is set to INFO (or lower) you should see several messages like these on the Engine log file:
```
 info  Migrating Schema to Build #60008  Nov 30, 2007 4:46:13 PM Engine Main <0> main
 info  Schema migration successful       Nov 30, 2007 4:46:13 PM Engine Main <0> main
```
These messages correspond to the automatic migration of the Engine's database schema to the new structure.

Your Engines are now up and running. You should now log into WorkSpace and test your processes to make sure they behave as expected and all running process instances are running properly on your new 6.0 environment.