Lsi Corporation

Frederick G Smith

Gabriel Leandro Romero

Brian E Burdick

A SAS expander collects data access information associated with a nexus and determines whether a data prefetch is appropriate. The SAS expander identifies potential data blocks utilizing previous data requests of the nexus. The SAS expander issues a data request to the target for the potential data blocks. The SAS expander stores the potential data blocks within a prefetch cache for future utilization within a data read.

Data prefetch in SAS expanders

Methods and apparatuses for correcting an error in a data stream that is coded with a line code and an error detection scheme. Information relating to the line code is used to locate at least one possible error character. At least one possible correct character to replace one or more of the at least one possible error character is then identified. Subsequently, the error detection scheme is applied to the data stream updated with one of the at least one possible correct character. If none of the at least one possible correct character results in a valid data stream, an error that is observable by a user is generated.

Methods and apparatuses for correcting errors in data streams

Driving multiple consecutive bits having a same logic value in a serial data stream involves driving a first bit of the multiple consecutive bits in the serial data stream at an initial voltage level, and driving at least two additional bits of the multiple consecutive bits in the serial data stream at voltage levels stepped down from the initial voltage level.

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Colorado Springs, CO, United States of America

Frederick G Smith