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:
Apr. 14, 2020
Filed:
Mar. 25, 2016
Netapp, Inc., Sunnyvale, CA (US);
Kshitij Wadhwa, Sunnyvale, CA (US);
Samuel A. Dillon, San Jose, CA (US);
Ajay Pratap Singh Kushwah, San Ramon, CA (US);
Sumeeth Channaveerappa Kyathanahalli, Mountain View, CA (US);
Sudhindra Prasad Tirupati Nagaraj, Sunnyvale, CA (US);
NetApp, Inc., Sunnyvale, CA (US);
Abstract
A storage tier manager creates different versions of a dataset backup for different retention periods. Each of the versions is distinctly identifiable despite initially representing a same dataset backup. One version can be referred to as a cached version of the dataset backup and another version can be referred to as a cloud version of the dataset backup. When the retention period expires for the cached version of the dataset backup, the storage tier manager migrates the cloud version of the dataset backup from the caching storage tier to the cloud storage tier. The storage tier manager can then recover storage space occupied by data that has been migrated, as long as that data is not shared with other cached versions of other dataset backups due to deduplication.