Informix Troubleshooting

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Any form of reproduction of the contents or parts of this manual is allowed only with the express written permission from SEP AG. When compiling and designing user documentation SEP AG uses great diligence and attempts to deliver accurate and correct information. However, SEP AG cannot issue a guarantee for the contents of this manual.

Docs latest icon.png Welcome to the latest SEP sesam documentation version 4.4.3/4.4.3 Beefalo. For previous documentation version(s), check documentation archive.


General troubleshooting

  • Ensure that the following environment variables are correctly set:
  • Make sure to check the messages on the SEP sesam Server.
  • Additional information can be found in the ONBAR and SIB log files.
  • SEP recommends using a single log file for ONBAR and XBSA messages. You will then be able to see all calls from the database and SEP sesam in the correct order for this set environment variable:
XBSA_LOGFILE=<complete path to bar_act.log> and  XBSA_TRACE=1.
  • All SIB (sesam) messages have the prefix SIB.
  • For more information, set XBSA_TRACE to 2, but then the log files can become quite large.
  • To activate the ONBAR log, edit the following line in the onconfig file:
BAR_DEBUG       2    \# where 'num' = 0-9; 9 producing heaps output defaults to /tmp/bar_dbug.log

Specific error messages

Error message when executing oninit

Allocating and attaching to shared memory...FAILED
oninit: Fatal error in shared memory creation


Error during first backup attempt

Begin backup of critical file 'C:\PROGRA~1\IBM\Informix\11.70\etc\ixbar.0'.
(-43078) Open or close failed on file 'C:\PROGRA~1\IBM\Informix\11.70\etc\ixbar.0', errno = 2 .


  • Create the missing file in C:\PROGRA~1\IBM\Informix\11.70\etc\ixbar.0.

Error 131 during first logical logs backup attempt

 Unable to start the logical log backup: Log backup to device 'nul' not allowed
 C:\PROGRA~1\IBM\Informix\11.70\bin\onbar_d complete, returning 131 (0x83)


See also