The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 03, 2007
Filed:
Jul. 30, 2003
William F. Micka, Tucson, AZ (US);
Sam C. Werner, Tucson, AZ (US);
William F. Micka, Tucson, AZ (US);
Sam C. Werner, Tucson, AZ (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method to copy information to two data storage devices. The method provides a first data storage device and a second data storage device, where the first data storage device is capable of communicating with the second data storage device. The method provides first information and a write command to the first data storage device at a first time. The method determines if the write command comprises a synchronous copy attribute. If the write command comprises a synchronous copy attribute, then the method synchronously provides the first information to the second data storage device. Alternatively, if the write command does not comprise a synchronous copy attribute, then the method provides the first information to the second data storage device at a second time, where that second time is later than the first time.