发明名称 |
METHOD OF OPERATING A DISK STORAGE SYSTEM |
摘要 |
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 Wbase bits/sec and consumed by the disk storage system or produced by said disk storage system and consumed inthe network at a rate of Wbase bits/sec. One I/O transaction is performed for each stream in each of a plurality of I/O cycles of duration S/Wbase, 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/Wbase. More generally, when a stream has a bit rate (A/B)Wbase 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/Wbase. If the number of disks is Nd,Nd>/=1, then the I/O cycles have a duration NdS/Wbase and then A I/O transactions are performed in each disk for each stream in B I/O cycles. |
申请公布号 |
WO9412937(A2) |
申请公布日期 |
1994.06.09 |
申请号 |
WO1993US11032 |
申请日期 |
1993.11.15 |
申请人 |
STARLIGHT NETWORKS, INC. |
发明人 |
TOBAGI, FOUAD, A.;GANG, JOSEPH, M.;BAIRD, RANDALL, B.;PANG, JOSEPH, W., M.;MCFADDEN, MARTIN, J. |
分类号 |
G06F3/06;G06F17/30;G11B27/10;H04N7/173;H04N7/24;H04N21/21;H04N21/23;(IPC1-7):G06F15/00;G06F15/62;G06F15/56;G06F15/40;G06F15/26 |
主分类号 |
G06F3/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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