Managing an IBM 3494 VTS without the IMPORT/EXPORT feature is similar to managing a basic IBM 3494 ATL; however since the volumes remain in the VTS, there is no need to define special rules for handling the physical container volumes. The OAM user exits CBRUXENT and CBRUXEJC should be installed using the instructions provided in the IBM Tape Library Support Manual. Source is provided in CAI.CTAPSAMP members CTSUXENT and CTSUXEJC that must be customized. Source is also provided for the optional Volume Not in Library exit in member CTSUXVNL.
Usermod TLMU003 may also be run to provide immediate scratch synchronization with the OAM TCDB. The SMP/E statements to apply TLMU003 are provided in member TLMJU003 of CAI.CTAPJCL.
Run your normal daily CA TLMS maintenance jobs. If you have implemented TLMU003 to provide immediate scratch synchronization with the 3494 VTS, when TLMSTRS runs it will notify the 3494 VTS which tapes have been scratched. All tapes (virtual volumes) remain within the 3494 VTS. If you do not implement TLMU003, you must add a job to your daily maintenance cycle to run CTSSYNC with a parm of SYNC after TLMSTRS runs. This will keep the OAM TCDB and the VMF scratch status synchronized.
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