Installation input validation routine for dynamic allocation

An exit (IEFDB401) from dynamic allocation allows an installation-written routine to validate or alter any DYNALLOC request.

Through IEFDB401, your installation can:
  • Control the amount of direct access space requested
  • Check for authorization to use specified units
  • Check for authorization to use specified data sets
  • Check for authorization to hold certain resources for reuse.

See z/OS MVS Installation Exits for information about IEFDB401.