System for and method of accessing blocks on a storage medium

Details System for and method of accessing blocks on a storage medium System for and method of accessing blocks on a storage medium

2006-08-22

2006-08-22

Thai, Tuan V. (Department: 2186)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

Reexamination Certificate

active

07096327

ABSTRACT:
A system (100, 300) like a video on demand server has a storage medium (106) with a number of files (200) from which data can be fetched or in which data can be stored. A file contains a number of clusters (202, 204, 206) and each cluster contains a number of storage sectors (208) that are physically successively organized on the storage medium. When a new stream is requested, either for reading or writing, a block size (210) is determined for the new stream. The block size is large enough to support the rate of the stream and is chosen such that a cluster can be read with an integer number of blocks by evenly partitioning the size of the cluster into the size of the blocks reading the cluster.

REFERENCES:
patent: 5890168 (1999-03-01), Lawerman
patent: 5950015 (1999-09-01), Korst
patent: 6477541 (2002-11-01), Korst et al.

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