Theresa Eason Howard

US Patent:

7711876, May 4, 2010

Filed:

Mar 23, 2005

Appl. No.:

11/087208

Inventors:

Kerri R Shotwell - Tucson AZ, US
James A Fisher - Tucson AZ, US
Erika M Dawson - Tucson AZ, US
Jonathan W Peake - Tucson AZ, US
Theresa M Howard - Oro Valley AZ, US
Gregory T Kishi - Oro Valley AZ, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 12/00

US Classification:

710 68, 711161, 711154, 711111, 711113, 710 33

Abstract:

Methods and apparatus are provided for dynamically compressing categories in a data storage library. In one embodiment, the method includes retrieving an identification of a first category in the data storage library, the first category being a last-compressed category. Next, an identification number of a first order of the first category is retrieved, the first order being a last compressed order. Compression is resumed of orders in the first category with an order next following the first order and continued with additional orders in the first category. If a predetermined amount of time has elapsed, the identification of the first category and the identification number of the order of the first category being compressed are stored. If, however, the predetermined amount of time has not elapsed and compression of the first category is complete, compression of a second category is begun.