Data storage system and parity generation method for data storag

Details Data storage system and parity generation method for data storag Data storage system and parity generation method for data storag

1997-07-15

1999-04-06

Tu, Trinh L.

Excavating

39518507, 3642663, 3649445, G06F 1100

Patent

active

058927808

ABSTRACT:
The present invention provides a method and apparatus for generating parity in a data storage system. The data storage system includes two or more storage devices having data stored therein, two or more data buses through which the data is transferred, and a selector located between the storage devices and the buses which selectively connects the storage devices and the data buses by a predetermined combination. The selector further includes the capability of calculating parity operations such as an XOR operation. The selector performs the parity operations to logically combine data transferred through the selector between the data buses and the storage devices to produce parity data on the combined data transferred so as to reduce the data transfers over the data bus.

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