Boots – shoes – and leggings
Patent
1992-11-17
1996-12-03
Lee, Thomas C.
Boots, shoes, and leggings
395825, 395841, 3649671, G06F 1300, G06F 1328
Patent
active
055817840
ABSTRACT:
A method for operating a disk storage system, comprising a disk and forming part of a communications network, simultaneously maintains the continuity of a plurality of data streams. Typically, each stream transfers video data to or from the disk storage system. Illustratively, each of the data streams is produced in the network at a rate of W.sub.base bits/sec and consumed by the disk storage system or produced by said disk storage system and consumed in the network at a rate of W.sub.base bits/sec. One I/O transaction is performed for each stream in each of a plurality of I/O cycles of duration S/W.sub.base, wherein in each I/O transaction a segment of S bits is retrieved from or stored in the disk. The number of streams whose continuity can be maintained in this manner is limited by the number of I/O's which can be performed in a cycle of duration S/W.sub.base. More generally, when a stream has a bit rate (A/B)W.sub.base bits/sec where A and B are integers chosen independently for each stream, then for this stream A I/O transactions are performed in B cycles of duration S/W.sub.base. If the number of disks is N.sub.d,N.sub.d .gtoreq.1, then the I/O cycles have a duration N.sub.d S/W.sub.base and then A I/O transactions are performed in each disk for each stream in B I/O cycles.
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Baird Randall B.
Gang, Jr. Joseph M.
McFadden Martin J.
Pang Joseph W. M.
Tobagi Fouad A.
Kriek Rehana P.
Lee Thomas C.
Starlight Networks
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