HP Assigned Three Patents

Managing I/O request in storage system

Hewlett-Packard Development Company, LP, Houston, TX, has been assigned a patent (8,301,805) developed by Kishore Kumar Muppirala, and Sumanesh Samanta, Karnataka, India, for "managing I/O request in a storage system."

The abstract of the patent published by the U.S. Patent and Trademark Office states: "The present invention relates to managing I/O requests in a storage system. By dynamically changing the scheduling parameters to achieve optimal turn around time for I/O requests pending for processing at a component in the storage system. The scheduling parameters are changed based on a feedback mechanism. The turn around time of the I/O request are calculated as the ratio of I/O request processing rate and the average number of I/O requests in the component."

The patent application was filed on Nov. 26, 2009 (12/626,628).

Replication of operations
on objects distributed in storage system

Hewlett-Packard has been assigned a patent (8,306,947) developed by six co-inventors for a "replication of operations on objects distributed in a storage system."

The co-inventors are Sean L. Broeder, Sunnyvale, CA, Gordon J. Bowring, San Jose, CA, James J. Collison, Indianapolis, Vilmar Olsen, Copenhagen, Denmark, David W. Birdsall, Santa Clara, CA, and Gary M. Gilbert, Arlington Heights, IL.

The abstract of the patent published by the U.S. Patent and Trademark Office states: "One embodiment is a method that reads audit from an audit trail of a source database distributed across multiple storage systems with independent audit trails and then replicates the audit trail to a target database distributed across multiple storage systems with independent audit trails without manual coordination by a database administrator."

The patent application was filed on Oct. 30, 2008 (12/261,473).

Tracking memory space in a storage system

Hewlett-Packard has been assigned a patent (8,312,242) developed by Corene Casper, Pleasant Grove, UT, Terence M. Rokop, Aloha, OR, and Samuel Revitch, Portland, OR, for a "tracking memory space in a storage system."

The abstract of the patent published by the U.S. Patent and Trademark Office states: "One embodiment is a method that uses a hierarchical bitmap tree in a storage system to store where available and unavailable memory space exists. Bitmap blocks are retrieved from the hierarchical bitmap tree to locate the available memory space."

The patent application was filed on Oct. 30, 2008 (12/261,069).