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. 19, 2014
Filed:
Sep. 29, 2011
Phillip P. Fultz, Clinton, MA (US);
Kiran Madnani, Santa Clara, CA (US);
Manpreet Singh, Boxborough, MA (US);
Phillip P. Fultz, Clinton, MA (US);
Kiran Madnani, Santa Clara, CA (US);
Manpreet Singh, Boxborough, MA (US);
EMC Corporation, Hopkinton, MA (US);
Abstract
A method is used in managing read caching. First and second read caches are maintained in a data storage system. The first read cache is controlled by a first storage controller and the second read cache is controlled by a second storage controller. Read cache data is copied from the first storage controller to the second storage controller. A failure of the first storage controller is detected. Based on the detection, the copied read cache data is processed at the second storage controller to make the copied read cache data available for use at the second storage controller.