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:
Jun. 03, 2008
Filed:
Aug. 11, 2006
David Meiri, Cambridge, MA (US);
Mark J. Halstead, Watertown, MA (US);
Haim Kopylovitz, Newton, MA (US);
Benjamin W. Yoder, Framingham, MA (US);
Adi Ofer, Wellesley, MA (US);
Hana Moreshet, Framingham, MA (US);
David Meiri, Cambridge, MA (US);
Mark J. Halstead, Watertown, MA (US);
Haim Kopylovitz, Newton, MA (US);
Benjamin W. Yoder, Framingham, MA (US);
Adi Ofer, Wellesley, MA (US);
Hana Moreshet, Framingham, MA (US);
EMC Corporation, Hopkinton, MA (US);
Abstract
Ordering data writes include a host computer providing a plurality of data writes to a primary storage device, the primary storage device assigning a first sequence number to data writes begun after a first time and before a second time, the primary storage device assigning a second sequence number, different from the first sequence number, to data writes begun after the second time, in response to completion of all writes assigned the first sequence number, the primary storage device transferring writes assigned the first sequence number to a secondary storage device, and, in response to the primary storage device transferring all writes assigned the first sequence number to the secondary storage device, the primary storage device sending a commit message to the secondary storage device. Ordering data writes may also include, in response to receiving a commit message from the primary storage device, the secondary storage device storing the data writes having the first sequence number.