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:
Jan. 08, 2019
Filed:
Mar. 24, 2016
Emc Ip Holding Company Llc, Hopkinton, MA (US);
Satish Visvanathan, San Jose, CA (US);
Mahesh Kamat, San Jose, CA (US);
Rahul B Ugale, Santa Clara, CA (US);
EMC IP Holding Company LLC, Hopkinton, MA (US);
Abstract
A method, article of manufacture, and apparatus for populating an index cache on a deduplicated storage system is discussed. A determination to flush an in-memory index to a hard drive ('HDD') on the deduplicated storage system is made, wherein the in-memory index comprises in-memory hash buckets containing fingerprint identifiers and container identifiers. A first HDD index is loaded from the HDD into a memory, wherein the first index includes a plurality of HDD buckets. The fingerprint identifiers and the container identifiers are merged from the in-memory hash buckets into the HDD buckets. The HDD buckets are mapped to a plurality of solid state drive ('SSD') buckets, the SSD buckets together comprising a SSD index. The fingerprint identifiers and container identifiers are inserted into the plurality of SSD buckets.