Technique to store and rapidly hydrate high frequency snapshots on object storage

US12189497B2 · kind B2 · utility

Assignee

• Nutanix, Inc. · US

Inventors

• Abhishek Gupta · San Francisco, US
• Ajaykumar Rajubhai Bhammar · Sayla, IN
• Akshay Pandita · Tashidongze, IN
• Bhoomi Sawant · Sherpur, IN
• Brajesh Kumar Shrivastava · Singla, IN
• Deepak Narayan · Bengaluru, IN
• Prachi Gupta · Santa Clara, US
• Siddhant Meshram · Ashti, IN

Key dates

• Filing date: Jul 27, 2023
• Grant date: Jan 7, 2025
• Expiry date: Jul 27, 2043

Classification

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

Abstract

A technique enables recovery of failover data used to generate one or more High Frequency Snapshots (HFSs) at a source and replicated to a target for storage and recovery. The target is illustratively an intermediary repository embodied as a long-term storage service (LTSS) configured to organize and store the HFSs as recovery points (RPs) in an object store. The LTSS stores a HFS identifier (ID), a logical offset in an object of the object store storing data of the HFS, and a logical timestamp associated with each replicated HFS as a key of a segment descriptor in a key-value database configured to store metadata describing the failover data of the HFS stored as one or more objects in the object store. Upon recovery of the failover data, the technique enables identification of the HFS stored in the object store and creation of a HFS index metadata structure (B+ tree) to extract the identified HFS as a RP.