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The integration of real-time I/O and network support in the Stony Brook Video Server

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3 Author(s)
Tzi-cker Chiueh ; State Univ. of New York, Stony Brook, NY, USA ; Venkatramani, C. ; Vernick, M.

Stony Brook Video Server (SBVS) is an Ethernet-based video server from the Experimental Computer Systems Laboratory, SUNY at Stony Brook, and has been fully operational for over a year. The SBVS employs only off-the-shelf PC components and is capable of guaranteeing real-time delivery of digital video streams from the server's disk subsystem, through a shared LAN, to an end user's display. The SBVS integrates a real-time software-based disk array with the Real-Time Ethernet Protocol to provide end-to-end bandwidth guarantee. This article describes in detail how the real-time I/O subsystem interacts with the RETHER subsystem, and the performance cost of this integration. The most recent version of SBVS, a Pentium-90 PC with a six-drive disk array, can support up to 45 simultaneous MPEG-1 (1.5 Mb/s) streams with a single 100 Mb/s Ethernet link, and up to 65 streams with two 100 Mb/s Ethernet links

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Network, IEEE  (Volume:13 ,  Issue: 2 )