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Multimedia resource management in OS/390 LAN Server

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4 Author(s)
A. Dan ; IBM Research Division, Thomas J. Watson Research Center, P.O. Box 704, Yorktown Heights, New York 10598, USA ; S. Dulin ; S. Marcotte ; D. Sitaram

In a multimedia server, resource reservation is critical for guaranteeing jitter-free delivery of video. In this paper, we describe the resource manager component of the OS/390™ LAN Server (video server) that implements resource reservation. The resource manager functions can be divided into three categories: (1) the system management functions that allow arbitrary multimedia resources to be dynamically defined, undefined, and calibrated, and their capacities monitored remotely via the Simple Network Management Protocol, (2) the operational functions that allow video streams to reserve and release resources for supporting playback without explicit specification of the needed resources, and (3) the real-time data import function that places videos on the storage devices so as to balance the load among the devices after making the necessary space and bandwidth reservations. We finally discuss research issues to exploit economies of scale.

Note: The Institute of Electrical and Electronics Engineers, Incorporated is distributing this Article with permission of the International Business Machines Corporation (IBM) who is the exclusive owner. The recipient of this Article may not assign, sublicense, lease, rent or otherwise transfer, reproduce, prepare derivative works, publicly display or perform, or distribute the Article.  

Published in:

IBM Systems Journal  (Volume:36 ,  Issue: 3 )