DB2 SQL-911 errors can indicate that the system tables are in the same tablespace as the primary server.
SQL-911 errors are similar to the following:
-911 THE CURRENT UNIT OF WORK HAS BEEN ROLLED BACK DUE TO DEADLOCK OR TIMEOUT.
See IBM DB2 documentation for complete information on DB2 SQL errors.
Documentation for the software component that issued the error
IBM DB2 documentation