-uf database server option

Specifies the action that the database server takes when a fatal error or assertion failure occurs on a database server.

dbsrv16 -uf action ...

abort The database server is shut down and a core file is generated.
default The database server behaves in the same manner as abort, except when a device-full fatal error occurs. In this case, it behaves in the same manner as defunct. This action prevents the system from trying to write a core file on a full device.
defunct The database server continues running and does not call abort. Any new connection attempts that are made to the database server receive the original error.