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:
Oct. 28, 2014
Filed:
May. 10, 2012
Garth Goodson, Fremont, CA (US);
Minglong Shao, San Jose, CA (US);
Keith Smith, Cambridge, MA (US);
NetApp, Inc., Sunnyvale, CA (US);
Abstract
A hierarchically tagged cache provides abstraction between access requests for data and the cached data. The cache is managed by hierarchical layers of indexes including reference to the data. Access requests indicate a header for the requested data, which is associated with one of the layers. Cache management determines what layer is associated with the header, and can traverse the indexes, beginning at the layer associated with the header, to access the data. If the header does not exist at the index of that layer, it can be created. Indexes can be appropriately updated with indexes at each layer being referenced by one or more indexes of the layer higher up in the hierarchy.