You can use the tape-ejected exit (ARCTEEXT) to dynamically insert nonlibrary DFSMShsm tapes in a library, as needed. This allows installations to run with a smaller tape library and have the choice of allocating tapes outside the library or dynamically re-inserting tapes that were previously ejected from the library. These actions can be done without causing jobs to fail or adversely affecting other DFSMShsm activity. This exit gains control at a point before code that supports the TAPEINPUTPROMPT function is processed.

ARCTEEXT is called if DFSMShsm determines that not all of the required tapes are in a single Automated Tape Library (ATL) or Manual Tape Library (MTL), or when one or more tapes is outside of a library. This gives the installation the opportunity to insert tapes into a library or tell DFSMShsm to allocate the tape drives that are outside of a library or to fail the allocation request.