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. 05, 2014
Filed:
Mar. 06, 2008
Thomas E. Linnell, Northborough, MA (US);
John S. Harwood, Paxton, MA (US);
John T. Fitzgerald, Mansfield, MA (US);
Thomas E. Linnell, Northborough, MA (US);
John S. Harwood, Paxton, MA (US);
John T. Fitzgerald, Mansfield, MA (US);
EMC Corporation, Hopkinton, MA (US);
Abstract
By placing an encryption function below a RAID function and requiring independence of encryption functionality along the same boundaries of data member independence of the RAID function, failures of the encryption and key management for individual encryption functions can be recovered with the same data rebuild mechanism as the RAID function. For example, in a RAID set of disk drives, each data partition and each parity partition has a respective data encryption key for storing encrypted data or encrypted parity in the partition, and a LUN or logical volume is mapped to a stripe of data partitions and an associated parity partition across the RAID set so that the data rebuild mechanism of the RAID function may recover from a loss of a single data encryption key without compromising security of the LUN or logical volume.