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:
Nov. 11, 2014
Filed:
Feb. 10, 2012
Storage device replacement method, and storage sub-system adopting storage device replacement method
Yosuke Nakayama, Odawara, JP;
Hiroshi Suzuki, Sagamihara, JP;
Tetsuya Inoue, Odawara, JP;
Takakatsu Mizumura, Chigasaki, JP;
Yosuke Nakayama, Odawara, JP;
Hiroshi Suzuki, Sagamihara, JP;
Tetsuya Inoue, Odawara, JP;
Takakatsu Mizumura, Chigasaki, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
Based on information security rules, it is not possible to take out a failure HDD to the exterior of a facility for replacement without erasing data therefrom. According to the present storage sub-system, a slot in which failure has occurred and a slot not registered to a configuration information of a storage sub-system are used to simultaneously perform correction copy to a spare HDD and data erase of the failure HDD in parallel, so as to enable the failure HDD to be brought out to the exterior of the storage facility. Further, time required from when failure has occurred to the HDD to data recovery is shortened, so as to prevent deteriorated redundancy that may be caused by another failure occurring during data recovery and to reduce the risk of data loss.