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:
Jan. 10, 2012
Filed:
Jun. 02, 2009
Yusuke Douchi, Odawara, JP;
Hiroshi Izuta, Odawara, JP;
Yusuke Douchi, Odawara, JP;
Hiroshi Izuta, Odawara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A RAID group is configured and operated by using multiple storage drivesand expandersandconnected with the storage drives. If a failure related to any storage driveis detected, a storage systemwhich issues a broadcast and a discover command to the communication path of the storage drivemanages a broadcast inhibiting flag for setting the information showing whether to inhibit transmission of broadcast per storage drive. If a failure occurs to a storage driveconstituting a RAID group whose redundancy is lost, the storage systemsets the broadcast inhibiting flag to inhibiting the broadcast transmission, and if a failure related to the storage driveoccurs and the broadcast inhibiting flag of the storage driveis being set to inhibiting the transmission, inhibits the transmission of the broadcast.