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:
Apr. 26, 2016
Filed:
Feb. 06, 2012
Kazuhiro Oyama, Hadano, JP;
Hiroshi Yokouchi, Yokohama, JP;
Kazuhiro Oyama, Hadano, JP;
Hiroshi Yokouchi, Yokohama, JP;
HITACHI, LTD., Tokyo, JP;
Abstract
A storage apparatus includes multiple ports communicable with a server, multiple processor cores and multiple LUs (Logical Units). For each port, a port responsible core, which is a processor core to accept an I/O request received by the port, is specified. For each LU, an LU responsible core, which is a processor core responsible for I/O, is specified. The LU responsible core may be dynamically changed. The server periodically acquires identification information about the LU responsible cores from the storage apparatus. When transmitting an I/O request, the server selects a non-cross call path, which is such a path that the LU responsible core and the port responsible core are the same processor core, from among multiple paths to an I/O destination LU, which is an LU specified by the transmission target I/O request, and transmits the transmission target I/O request via the selected path.