Cost reduction schema for advanced raid algorithms

Details Cost reduction schema for advanced raid algorithms Cost reduction schema for advanced raid algorithms

2008-03-25

2008-03-25

Beausoliel, Robert (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S005110, C711S114000

Reexamination Certificate

active

07350102

ABSTRACT:
A signal bearing medium tangibly embodying a program of machine-readable instructions executable by a processor to perform operations to read information stored in a storage system. The storage system includes a controller coupled to a plurality of type I performance class disk drives and at least one type II performance class backup disk drive. The operations include executing a first read request for a first set of information from a first type I performance class disk drive and executing a second read request for the first set of information from a first type II performance class backup disk drive in response to an occurrence of a first read error associated with the execution of the first read request.

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