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. 04, 2011
Filed:
Feb. 11, 2009
Brendan D. Gregg, San Francisco, CA (US);
Adam H. Leventhal, San Francisco, CA (US);
Bryan M. Cantrill, Piedmont, CA (US);
Brendan D. Gregg, San Francisco, CA (US);
Adam H. Leventhal, San Francisco, CA (US);
Bryan M. Cantrill, Piedmont, CA (US);
Oracle America, Inc., Redwood City, CA (US);
Abstract
A method for caching data in a storage system involves receiving a request for a first datum stored on a storage disk, retrieving the first datum from the storage disk when a copy of the first datum is not stored on an asymmetric cache device (ACD), storing a first copy of the first datum in a main memory, updating a list of data to include the first datum, storing, prior to any data being evicted from the main memory, a second copy of the first datum on the ACD, and evicting the first copy of the first datum from the main memory when a first copy of a second datum is designated for storing in the main memory and the main memory is full and the first datum is at the tail of the list of data.