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Specifies the Db2® load libraries for the Db2 subsystem defined by SSID. All data sets defined to the DB2LLIB keyword must be APF-authorized.
You only need to specify a value for DB2LLIB if:
  • The Db2 load libraries have not been added to the LINKLIST, and the libraries have not been allocated as part of the TSO logon procedure, or any initialization clist or exec run prior to starting ZDT/Db2.


  • Db2 load libraries have been added to the LINKLIST, but the libraries in the LINKLIST are for a different version or release of Db2 to the Db2 system defined by this HFM2SSDM macro.
  1. All Db2 load libraries, however specified to ZDT/Db2, must be APF-authorized.
  2. If you code Db2 load library names in the HFM2SSDM macro entries for a Db2 system, ZDT/Db2 will use an ISPF LIBDEF ISPLLIB service to allocate the Db2 load libraries. This requires the user to have either READ or EXECUTE access to the Db2 load libraries. When EXECUTE access only is given, the environment must be a 'controlled environment' in RACF® terms, and you may need to write additional security rules. For information about establishing and using a RACF 'controlled environment', see the z/OS Security Server RACF Security Administrator's Guide, or equivalent documentation for your security product, if you do not use RACF.

See Alternatives for making ZDT/Db2 available for information about the LINKLIST and TSO logon procedures for ZDT/Db2.