ORA-600: 8.1.6.2/Intermedia Option/AIX 4.3.3

We see corrupt data blocks and instability in our database 8.1.6.2 with the intermedia option (context) running on an IBM RS6000 S80 with AIX 4.3.3 (32bit) and HACMP.

The stored data is not static, it is some kind of a mailing system with incoming messages from another IBM-system that pushes data via oracle's IMS ACCESS MANAGER (database link). There are about 10.000 incoming docs a day, the same number is deleted, so that that the number of docs is always about 250.000.
The context index for the incoming messages is immediately actualised. The user's application is forms 4.5 based (we know we have to change!). Retrieval is done with the intermedia option (context).

We have heavy problems, once a week corrupted data (the servers has to run 24 hours/7 days), messages are ORA-600 (subcodes 2123 or 25252 or 12700 or KCBZPB_2 or ...). There are about 6 high used tables in the application, together with the also high used context index tables they are the candidates for corruption.
We cannot reproduce the problem.
The database has been rebuilt (complete export and import), 10 days later, the error came again. Hardware has been checked, the fibre channel bug from IBM is fixed.

Is there anybody with better hints than oracle's field support?

Thanks Received on Fri Jan 12 2001 - 17:33:17 CST