STAR Library Manager (LIBMGR) enables OS 2200 to use the tape automation services of the DSI Virtual Tape Library (VTL) and the DSI Physical Tape Library (PTL).
Library Manager ensures that user tape requests intended for the DSI VTL or PTL are directed to those devices.
LIBMGR executes as a background program with an interface for console operations. It has active and ongoing interaction with STAR-1100 and the OS 2200 operating system. Thus, LIBMGR extends data protection, library management and highly productive tape operations into your virtual tape library and its backup resources.
LIBMGR obtains scratch pool services from STAR-1100 so that users’ scratch pool requests are conveniently fulfilled and also managed from common resources.
Users can stack multiple tape volume images onto a single virtual tape. Later, as needed, they can then unstack a stacked volume onto a physical tape.