Adaptec, Inc.

Eric Cheng

Yafu J Ding

Chang-Tying Wu

An invention is disclosed for a segregated user interface for parameter configuration in a multi-path failover system. The segregated user interface includes a user interface module capable of receiving configuration parameters for the multi-path failover system from a user. Further included is an object module that is capable of receiving the configuration parameters from the user interface module. The object module provides functionality and can detect the current controller status of controllers and the current device status of devices. In addition, the object module is capable of configuring a failover driver using the configuration parameters received from the user interface module.

Methods and apparatus for a segregated interface for parameter configuration in multi-path failover system

Method and apparatus for a segregated interface for parameter configuration in a multi-path failover system

An invention is disclosed for intelligent load balancing in a mult-path computer system. Initially, an input/output (I/O) request to access the computer I/O device is intercepted. Then, to properly balance data path traffic, the number of I/O requests that have been sent along each data path of a plurality of data paths providing access to the computer I/O device is detected, and a failure probability is calculated for each data path paths based on the number of I/O requests that have been sent along each data path. A data path is then selected that has a failure probability lower than the failure probability of other data paths of the plurality of data paths and the computer I/O device is accessed using the selected data path.

Intelligent load balancing for a multi-path storage system

A invention is disclosed that provides intelligent failover in a multi-path computer system. Initially, a plurality of data paths to a computer input/output (I/O) device is provided, wherein the plurality of data paths to the computer I/O device are represented as a single logical computer I/O device. Then, during operation, an I/O request to access the computer I/O device is intercepted. A data path from the plurality of data paths to the computer I/O device is then selected, and the computer I/O device is accessed using the selected data path.

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San Ramon, CA, United States of America

Eric Cheng