公开(公告)号：US20240311254A1

公开(公告)日：2024-09-19

申请号：US18239960

申请日：2023-08-30

Applicant: Nutanix, Inc.

Inventor： Abhishek Gupta ,  Andrey Alexseyevich Pyatkov ,  Angshuman Bezbaruah ,  Artem Yevgenyevich Livshits ,  Brajesh Kumar Shrivastava ,  Akshay Pandita ,  Manan Shah

IPC: G06F11/14

CPC classification number: G06F11/1446

Abstract: A differencing technique enables efficient retrieval of data from one of a substantial number of point-in-time images (e.g., snapshots) maintained over substantially long periods of time in a long-term storage service (LTSS) of an archival storage system. The LTSS efficiently retrieves the data by computing differences or deltas between any two arbitrary snapshots in accordance with a differencing procedure. According to the technique, the differencing procedure operates on one or more index tree structures configured to translate a logical offset range of snapshot data in a snapshot address space (e.g., of a file system) to a data object address space (e.g., of an object store hosting the snapshot data).