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. 27, 2008
Filed:
May. 05, 2003
David S. Ebsen, Chaska, MN (US);
Todd R. Burkey, Savage, MN (US);
Steven M. Howe, Rochester, MN (US);
Randal S. Rysavy, Kasson, MN (US);
David S. Ebsen, Chaska, MN (US);
Todd R. Burkey, Savage, MN (US);
Steven M. Howe, Rochester, MN (US);
Randal S. Rysavy, Kasson, MN (US);
Xiotech Corporation, Eden Prairie, MN (US);
Abstract
A method of upgrading firmware during background operation in a storage area network (SAN) including at least one storage controller having programmable memory and RAM, where the at least one storage controller for controls data access between at least one host server and at least one storage device. The method includes temporarily suspending data access commands from the at least one host server, upgrading firmware stored in programmable memory, and copying a current version of firmware in a first memory address of RAM to a second memory address in the RAM. The current version of firmware in the first memory address in RAM is overwritten with the upgraded version of firmware. The controller is reinitialized, and data access commands from the at least one host server to the at least one storage device are provided by the at least one storage controller.