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:
Aug. 30, 2011
Filed:
Aug. 26, 2009
Tadashi Matumura, Kawasaki, JP;
Masahiro Yoshida, Kawasaki, JP;
Taichi Ohno, Matsuyama, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A storage system includes a host and a storage apparatus. The host having multiple paths connecting with the storage apparatus transfers path identification information received from the storage apparatus, to the storage apparatus via all paths other than a path through which the path identification information has been transmitted. The storage apparatus includes a table for storing the path identification information transmitted to the host and path tables for storing the path identification information received from the host. When the storage apparatus receives a request for replacing the firmware, it determines whether the path tables are matched by comparing the path tables with each other. If the path tables are matched, the storage apparatus sequentially replaces the firmware corresponding to the multiple paths in a hot swapping manner.