00D900FA
Explanation
The starting Db2 subsystem is an incompatible release of Db2 or the code does not have the proper level of SPE applied or was coming from a release of Db2 that was not at the required catalog and/or function level. 
System action
The Db2 subsystem terminates. An SVC dump might be requested.
System programmer response
Verify that:
- The correct load libraries are being used to start up the Db2 subsystem.
- The correct level of SPE has been applied.
The catalog and function levels are at the required level in the previous release before migration to a new Db2 release. 