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:
Oct. 21, 2014
Filed:
Jun. 21, 2013
Fujitsu Limited, Kawasaki, JP;
Atsushi Takakura, Kawasaki, JP;
Kenji Hattori, Odawara, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A storage device, which is to be connected with hosts each having host-side communication ports and a multipath driver, includes logical storage units; communication ports; a driver type judging part that stores into a storage, when a prescribed SCSI command that a non-TPGS-compliant multipath driver does not transmit is received from a host by one of the communication ports, information indicating that the TPGS-compliant multipath driver is used in the host; and a command processing part, with respect to a SCSI command received via a communication path that is set as a standby path, judges by referring to the storage whether the TPGS compliant multipath driver is used in a host that transmitted the SCSI command, and, if the TPGS compliant multipath driver is not used in the host, processes the SCSI command assuming that the communication path is not the standby path.