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:
Sep. 16, 2014
Filed:
Dec. 23, 2011
Michael J. Polia, Hudson, MA (US);
Jean Marie (Montes) Schiff, Bolton, MA (US);
Kevin Schleicher, Bellingham, MA (US);
Kimchi Mai, Worcester, MA (US);
Michael J. Polia, Hudson, MA (US);
Jean Marie (Montes) Schiff, Bolton, MA (US);
Kevin Schleicher, Bellingham, MA (US);
Kimchi Mai, Worcester, MA (US);
EMC Corporation, Hopkinton, MA (US);
Abstract
A method is used in managing data availability in storage systems. A request to write new data to a disk of a plurality of disks of a data storage system is received. The plurality of disks includes first and second parity areas. The first parity area includes first parity information and the second parity area includes second parity information. Up to two disks of the plurality of disks are having a problem. Old data of the disk is reconstructed in a memory of the data storage system. The reconstructed old data of the disk is written to a parity area. The parity area is selected from the first or second parity areas based on a configuration preference. The new data is written to the parity area.