How to find additional information about messages

When you are working with DB2®, you might encounter messages issued by other IBM® products, such as IMS™, CICS®, or z/OS®. Information about messages issued by these and other IBM products is available in IBM Knowledge Center.

CICS
Information for multiple versions of CICS are available as part of the CICS library. Search the CICS Library..
IMS
IMS messages are available in IMS messages and codes.
IRLM
Messages and codes related to the IRLM, which were previously part of DB2 Codes, are now provided in IRLM Messages and Codes for IMS and DB2 for z/OS. IRLM messages have the prefix dxr.
z/OS
Information for multiple versions of z/OS is available as part of the z/OS library. Search the z/OS library..