BOI Software Entwicklung und Vertrieb GmbH

Phone: +43 (0) 732 / 736423 - 0

Spazgasse 4


4040 Linz, Austria

How to create a dump of a TABEX/4 browser session in z/OS?

Necessary informations for error analysis

For error analysis BOI needs the following informations:

  1. Log file with information about the termination (register, call context)
  2. Formatted dump

Important for the analysis: Both files must have been generated in the same browser session.

Log file

The log files are generated in the subdirectory "logs" of the z/OS Unix directory where TABEX/4 is installed. The session monitor numbers the files of the sessions, starting from 0.

A log file is named "log" followed by the session number, e.g.  log0, log1, etc.


The system writes the dum into a file which is assigned as SYSUDUMP. To achieve this, the following steps must be taken:

  • Change the call parameters of the session monitor in the Start JCL

The option TRAP(ON) has to be changed to TRAP(OFF) in the options for the language environment, e.g.:


Note: for normal operation the setting TRAP(ON) is required. TRAP(OFF) prevents the delivery of signals in Posix applications.

  • Definition of a file SYSUDUMP in the alloc script for the monitor sessions.

When using the default monitor parameters, this script can be found in the subdirectory "etc" ot the z/OS Unix directory where TABEX/4 is installed. The name of the script is "alloc". For the dump the following definition must be added:


(Instead of "..." the settings for the dump file must be adjusted.

Format of the dump file

Organization . . . : PS

Record format . . . : VBA

Record length . . . : 125

Block size . . . . : 1632


Changes in ESA data spaces, efficient migration and a new success story: Learn more in our newsletter!


Migration Packages

BOI GmbH offers migration packages for the table management systems SPITAB, TABSYS and VTAS.


» Migration Packages

Success Stories

GDIS and BOI: Carrying on the Success

With TABEX4 JTC, GDIS has introduced the world's fastest Java interface for table access on customer and control data. Learn the details in our new Success Story.


» read this Success Story

» read more Success Stories