When I installed CA ACF2 Option for DB2 I applied available maintenance as well.
When Starting to use CA ACF2 Option for DB2 I received some error messages
(for example CADB2091 - Internal error - invalid DB2SERV - D 0127)
When applying maintenance for a product you should ensure that maintenance is requested
for all included components.
For CA ACF2 Option for DB2 the components are:
CA ACF2 Option for DB2
Chorus Software Manager
In this instance you need the following PTS for CA-Security/DB2
Apars RO25433, RO25436 and RO24893/RO88618
provide the required support for the DB2 V10.
The specific problem you are seeing with message
CADB2091 - Internal error - invalid DB2SERV - D 0127
is caused because you do not have the version of CADB2SEC that supports the Database CHKDATA function.
RO24893 provides this suppoort but I would recommend that you apply the latest version of CADB2SEC - RO88618