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:
May. 11, 2010
Filed:
Jul. 31, 2007
Juan Alonso Coronado, Tucson, AZ (US);
Dinh Hai Le, Tucson, AZ (US);
Jayson Elliott Tsingine, Tucson, AZ (US);
Warren Keith Stanley, Loveland, CO (US);
Juan Alonso Coronado, Tucson, AZ (US);
Dinh Hai Le, Tucson, AZ (US);
Jayson Elliott Tsingine, Tucson, AZ (US);
Warren Keith Stanley, Loveland, CO (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A system is disclosed that includes a host system to issue a write command, a primary storage device to write data to a primary volume, and a secondary storage device to mirror the data to a secondary volume. A task timer may be initiated upon sending the data from the primary storage device to the secondary storage device. The secondary storage device may also send an acknowledge signal to the primary storage device in the event it successfully mirrors the data to the secondary volume. In the event the acknowledge signal is not received before the timer expires, the primary storage device may notify the host system that the primary and secondary volumes are in a suspended state. To alter the duration of the timer, the host system may be further configured to dynamically alter the duration of the timer by sending a command to the primary storage device.