Starting JES3 on the global processor
- Cold start
- Warm start
- Warm start with analysis
- Warm start to replace a spool data set
- Warm start with analysis to replace a spool data set
- Hot start with refresh
- Hot start with refresh and analysis
- Hot start
- Hot start with analysis
Another method of starting JES3, dynamic system interchange (DSI), transfers the JES3 global function to a JES3 local main.
You must use a cold start when starting JES3 for the first time. For subsequent starts (restarts), you can use any one of the start types, depending on the circumstances at the time. Thus, the other types of starts are actually restarts. Restarting JES3 on the global main discusses restart processing and the different types of restarts.
JES3 initialization statements are read as part of cold start, warm start, and hot start with refresh processing. If JES3 detects any error in the initialization statements, it prints an appropriate diagnostic message on the console or in the JES3OUT data set. JES3 ends processing if it cannot recover from the error. In this case, you must notify the system programmer to ensure that the error is corrected before restarting JES3.
JES3 configuration and processing options are specified with the initialization statements. Because many options affect the overall performance of the system, initialization statements must be provided by your system programmer.