Patent Number: 7,765,377

Title: Apparatus and method to write information to one or more information storage media

Abstract: A method to write information to one or more information storage media disposed in a data storage and retrieval system comprising host adapters capable of data compression and information storage devices capable of data compression. The method establishes a storage medium usage threshold and determines the actual storage media usage level for the data storage and retrieval system. The method then determines if the actual storage media usage level is greater than the storage medium usage threshold. If the actual storage media usage level is greater than said storage medium usage threshold, then the method enables use of information storage device data compression. Alternatively, if the actual storage media usage level is not greater than said storage medium usage threshold, then the method disables use of information storage device data compression.

Inventors: Friauf; Cheryl M. (Tucson, AZ), Kishi; Gregory T. (Oro Valley, AZ), Peake; Jonathan W. (Tucson, AZ)

Assignee: International Business Machines Corporation

International Classification: G06F 7/76 (20060101)

Expiration Date: 7/27/12018