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:
Mar. 13, 2018
Filed:
Sep. 30, 2016
Applicant:
Emc Ip Holding Company Llc, Hopkinton, MA (US);
Inventors:
Peter E. Tolvanen, Mendon, MA (US);
Henry Austin Spang, IV, Hopkinton, MA (US);
Gregory S. Schaffer, Berlin, MA (US);
Philippe Armangau, Acton, MA (US);
Christopher A. Seibel, Walpole, MA (US);
Assignee:
EMC IP Holding Company LLC, Hopkinton, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/08 (2016.01); G06F 3/06 (2006.01); G06F 12/12 (2016.01); G06F 12/0808 (2016.01); G06F 12/128 (2016.01);
U.S. Cl.
CPC ...
G06F 12/0808 (2013.01); G06F 3/065 (2013.01); G06F 3/0619 (2013.01); G06F 3/0659 (2013.01); G06F 3/0689 (2013.01); G06F 12/128 (2013.01); G06F 2212/621 (2013.01); G06F 2212/69 (2013.01);
Abstract
Improved techniques for maintaining cache coherence in a consistent state are provided. These techniques implement a data storage system using a journaled mirrored cache that ensures that storage operations making up certain transactions be performed atomically, so that a system failure does not result in data loss. The improved techniques also allow for efficient communication of mirroring information.