Chapter 22: JCL Aspects of Troubleshooting

This chapter covers some aspects of troubleshooting problems with running JCL applications in an MTO-enabled enterprise server.

Introduction

Problem diagnosis on a JCL-enabled enterprise server is very similar to problem diagnosis on an enterprise server running Web services or EJB-type services, as described in the chapter Troubleshooting in the Enterprise Server Configuration and Administration Guide.

Obtaining a Catalog Trace

If you are experiencing problems with the catalog, Micro Focus Product Support might ask you for a catalog trace. The trace shows all the I/O operations on the catalog. To obtain a catalog trace:

  1. Start a command prompt.
  2. Create a new directory, for example, /home/trace
  3. On the home page of Enterprise Server Administration, click Edit.
  4. On the Edit > Properties > General page, use the environment variables TEMP and MVSCATIO to set the location for the trace and to switch tracing on, for example:
    [ES-Environment]
    TEMP=/home/traceES
    MVSCATIO.TRACE=ON

    The text ES-Environment is case sensitive.

  5. Recreate the problem.
  6. Send in all the mvscatio.00n files from the trace directory.

MVSJOBNO

If you get MVSJOBNO I/O error 42, delete the file mvsjobds.dat, which you will find in the same directory as your catalog, and then try the failed operation again.


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