If your DB2® system does not run with SDSNEXIT, SDSNLOAD, and SDSNLOD2 in LNKLST, update your WebSphere® Servant and Adjunct JCL so that the STEPLIB includes the customized DB2 SDSNEXIT, the SDSNLOAD, and the SDSNLOD2.
If you do not have the STEPLIB set correctly, you will get the problem “Failure in loading T2 native library db2jcct2zos” , in the server systout, since the DB2 programs in SDSNLOD2 cannot be loaded. This error causes the SIBs to fail during initialization.
Backup the WebSphere Application Server configuration file system when you have completed the configuration.