It may be necessary to have control (enter commands) before the first "// JOB" statement after the IPL complete message.

For example the hardcopy or the recorder file will be opened during the execution of the first JOB statement. If you need to recreate one of these files, you have to enter the corresponding commands (e.g. SET HC=CREATE or SET RF=CREATE) before the first // JOB statement, however.

The following "procedure" may be used to interrupt the startup process:

1. Specifiy the IPL parameter LOADPARM ..P
2. You will be prompted to enter the Supervisor or ASI parameters
3. Enter your IPL procedure and a JCL procedure, e.g. IPL=$IPLESA,JCL=$$JCLXXX, where the procedure $$JCLXXX does not exist.
4. You will be prompted after IPL complete with message:
   BG 0000 // EXEC PROC=$0JCLXXX STATEMENT IS GENERATED
   BG-0000 1N20D PROCEDURE NOT FOUND
5. Now you can instruct z/VSE e.g. to recreate the hardcopy file with the command SET HC=CREATE - see book z/VSE System Control Statements for details
6. Continue with your BG startup procedure - e.g. // EXEC PROC=$0JCL
   It is just necessary to process the first // JOB statement to open the hardcopy file. 
7. Re-IPL your system

Please be careful when using such system commands.

 

Tags:  hardcopy_file system_startup ipl recorder_file job vse startup