发明名称 |
STORAGE SYSTEM |
摘要 |
A storage system (100) such as a video on demand system, comprising a plurality of storage units (110-120) such as disk drives. Each one of the storage units (110-120) has a number of storage zones (121-126) with mutually different expected data retrieval times. Data is stored in data units, with each data unit comprising N blocks, wherein N>/=2. The blocks of a data unit are distributed over the storage units (110-120). The blocks comprise redundant information such that any one of a plurality of selections comprising N-K of the N blocks suffices for retrieving the data unit, wherein K>/=1. For retrieving a data unit from the storage units (110-120), a reader determines which N-K of the N blocks to retrieve on the basis of a selection procedure. The selection procedure takes into account the expected data retrieval times in order to optimize bandwidth utilization.
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申请公布号 |
WO0027108(A1) |
申请公布日期 |
2000.05.11 |
申请号 |
WO1999EP07498 |
申请日期 |
1999.10.05 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
KORST, JOHANNES, H., M.;COUMANS, PASCAL, F., A. |
分类号 |
H04N5/76;G06F3/06;G06F11/10;G11B20/12;G11B27/00;G11B27/10;H04N5/00;H04N5/91;H04N5/92;(IPC1-7):H04N5/00 |
主分类号 |
H04N5/76 |
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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