International Business Machines Corporation

Cam-Thuy Do

Vishal V Ghosalkar

Khoa Khon Ngo

Wenhua Liu

Daniel James Winarski

Louie Arthur Dickens

Tara Lynn Astigarraga

Michael E Starling

Richard Harold Johnson

Laurence William Holley

Limei Shaw

A path selection module selects at least two fiber channel paths between a fiber channel host and a fiber channel destination. A trace route module performs one or more fiber channel trace route procedures for each of the at least two fiber channel paths. The trace route module provides a set of fiber channel links between the fiber channel host and the fiber channel destination for each of the at least two fiber channel paths. A record registration module registers with one or more event servers to receive link incident records for the fiber channel links in the sets of fiber channel links.

Storage area network path management

The present invention is a method, apparatus and program storage device for providing data path optimization for redundant data paths. The present invention provides data path optimization that increases the data access throughput and availability to a device by using multiple paths when a modification event occurs.

Method, apparatus and program storage device for providing data path optimization

A method and system for path management of data processing in an environment which includes a plurality of hosts running multiple operating systems is disclosed. The method and system includes providing a portable path management code and providing a plurality of control modules. Each of the control modules has an area which can only be accessed by the portable path management code. The method and system also include providing an interface to at least one device driver from the portable management code to allow the portable management code to control access to plurality of paths to a plurality of storage subsystems by the at least one device driver. The method and system in accordance with the present invention can provide path load balancing and fail over for a plurality of paths to a plurality of storage subsystems. The path management code is portable and platform independent so that the functionality can be ported easily to each operating system in the multiple system environment.

System for I/O path load balancing and failure which can be ported to a plurality of operating environments

Growing community of inventors

Sunnyvale, CA, United States of America

Cam-Thuy Do