Patent 7484066 was granted and assigned to Hitachi on January, 2009 by the United States Patent and Trademark Office.
In a system having an internal storage system and an external storage system, a technique is provided for allowing the external storage system to inherit performance parameters from the internal storage system. Management tables are established in each of the two storage systems, and data pertaining to desired operational characteristics stored in the management table in the internal storage system. That information is transferred to the external storage system and used control its operations in accordance with the desired performance parameter.