Basic Definition Mode

The entity used to check authorization depends on the value of parameter TBLPCHK in the security interface program. The following flag values are used:

• NO—Do not check parameter BLP in Basic Definition mode. Default.
• YES—Check parameter BLP in Basic Definition mode.

The CLASS checked is FACILITY. The entity used to check authorization is:

Table 77 CTTSE03 Basic Definition Authorization Entities

where volser is the volume serial number of the requested tape volume of a single volume file or the first volume of a multivolume file.

MVS/SAF always checks the usage of the BLP parameter using a class of FACILITY and an entity of ICHBLP.