Jobtrac requires GSS to be present to use its full functionality. GSS is used by Jobtrac for event loop detection, NJE and Crossplatform scheduling and execution of IMODS. If none of these features are desired then the GSS task does not need to be active. The GSS CAILIB must be present in the STEPLIB or in LNKLST. If it is not present Jobtrac will not start.
As always, please contact Broadcom support for Jobtrac Job Management if you have further questions.