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:
Aug. 10, 2010
Filed:
Jan. 06, 2006
Applicant:
Yuanru Frank Wang, Broomfield, CO (US);
Inventor:
Yuanru Frank Wang, Broomfield, CO (US);
Assignee:
Dot Hill Systems Corporation, Longmont, CO (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 12/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
Methods and systems for preventing permanent data loss due to a single failure in an array of storage devices are described. In particular, a defective memory block is detected and data that was on the now defective memory block is reconstructed using backup data in the array. The reconstructed data is stored in a replacement memory block, without requiring the rewriting of data in non-defective memory blocks. The information mapping the defective memory block to the replacement memory block may be stored as metadata on a storage device.