Rule-based re-tiering of incremental backup data stored on a cloud-based object storage

US11734124B2 · kind B2 · utility

Assignee

• EMC IP Holding Company LLC · US

Inventors

• Ravi Vijayakumar Chitloor · Kanchinakote, IN
• Sunil Yadav · Sherpur, IN
• Shelesh Chopra · Kanchinakote, IN
• Amarendra Behera · Bengaluru, IN
• Tushar Dethe · Bengaluru, IN
• Deependra Singh · Kanpur, IN
• Prabhat Kumar Dubey · Gubbi, IN
• Himanshu Arora · Champaign, US
• Jigar Bhanushali · Valsad, IN

Key dates

• Filing date: Mar 22, 2021
• Grant date: Aug 22, 2023
• Expiry date: Jul 13, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F2201/84
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

Described is a system for rule-based re-tiering of backup data stored on a cloud-based object storage. More specifically, the system may re-tier objects based on one or more storage rules such that the system retains the ability to efficiently perform a full restore of backup data even when incremental backups are performed to a cloud-based object storage. To provide such a capability, the system may maintain a specialized metadata database that stores information indicating the backup time for each backup, and a list of objects required to perform a full restore to each of the backup times. Accordingly, when initiating a re-tiering based on one or more storage rules, the system may intelligently select candidate objects for re-tiering by leveraging the metadata database to ensure that objects that may still need to be referenced are not unnecessarily moved to a lower storage tier.