公开(公告)号：US12271298B2

公开(公告)日：2025-04-08

申请号：US18333986

申请日：2023-06-13

Applicant: VMware LLC

Inventor： Enning Xiang ,  Wenguang Wang ,  Yifan Wang

IPC: G06F12/02

Abstract: The disclosure herein describes deduplicating data chunks using chunk objects. A batch of data chunks is obtained from an original data object and a hash value is calculated for each data chunk. A first duplicate data chunk is identified using the hash value and a hash map. A chunk logical block address (LBA) of a chunk object is assigned to the duplicate data chunk. Payload data of the duplicate data chunk is migrated from the original data object to the chunk object, and a chunk map is updated to map the chunk LBA to a physical sector address (PSA) of the migrated payload data on the chunk object. A hash entry is updated to map to the chunk object and the chunk LBA. An address map of the original data object is updated to map an LBA of the duplicate data chunk to the chunk object and the chunk LBA.