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:
Mar. 22, 2011
Filed:
Jun. 04, 2010
Ikuya Yagisawa, Tokyo, JP;
Takeki Okamoto, Odawara, JP;
Naoto Matsunami, Hayama, JP;
Mikio Fukuoka, Odawara, JP;
Toshio Nakano, Chigasaki, JP;
Kenichi Takamoto, Odawara, JP;
Akira Yamamoto, Sagamihara, JP;
Ikuya Yagisawa, Tokyo, JP;
Takeki Okamoto, Odawara, JP;
Naoto Matsunami, Hayama, JP;
Mikio Fukuoka, Odawara, JP;
Toshio Nakano, Chigasaki, JP;
Kenichi Takamoto, Odawara, JP;
Akira Yamamoto, Sagamihara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A storage system includes a plurality of disk apparatuses configuring a plurality of RAID groups, a spare disk apparatus, and a controller. The controller is adapted to copy data stored in a disk apparatus, whose error count exceeds a first threshold, to the spare disk apparatus. If an error count of a disk apparatus included in a RAID group exceeds a second threshold which is lower than the first threshold, the controller is adapted to check error counts of other disk apparatuses included in the same RAID group. If any of the error counts of the other disk apparatuses included in the same RAID group exceeds the second threshold, the controller is adapted to change the first value of the first disk apparatus and the other disk apparatuses included in the same RAID group.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile