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:
Feb. 26, 2008
Filed:
Jul. 06, 2004
Barry M. Zane, Wayland, MA (US);
Foster D. Hinshaw, Somerville, MA (US);
Philip J. Macdonald, Waltham, MA (US);
John K. Metzger, Westborough, MA (US);
Barry M. Zane, Wayland, MA (US);
Foster D. Hinshaw, Somerville, MA (US);
Philip J. MacDonald, Waltham, MA (US);
John K. Metzger, Westborough, MA (US);
Netezza Corporation, Framingham, MA (US);
Abstract
A disk is segmented into a first data segment and a secondary data segment. The secondary data segment stores a logical mirror of the first data segment of another disk. Upon detecting a failure, the logical mirror of data stored in the first data segment of the failed disk is accessible from the secondary data segment of a non-failed disk. The first data segment can be rebuilt quickly on another disk from the logical mirror stored in the secondary data segment. During regenerating, accesses to the first data segment on the disk containing the logical mirror are handled by its own logical mirror, which is not involved in the regenerating process.