公开(公告)号：WO2019112955A1

公开(公告)日：2019-06-13

申请号：PCT/US2018/063625

申请日：2018-12-03

Applicant: RUBRIK, INC.

Inventor： SINGH, Janmejay ,  ARORA, Anmol ,  BOTELHO, Fabiano ,  DERRYBERRY, Jonathan ,  MALPANI, Mudit ,  RANA, Satwant

IPC: G06F11/14 ,  G06F3/06

CPC classification number: G06F11/1446 ,  G06F3/0601 ,  G06F11/1453 ,  G06F11/1464 ,  G06F2201/84

Abstract: Methods and systems for backing up and restoring different point in time versions of a virtual machine, an application, a database, or an electronic file using independently managed snapshot chains are described. In some cases, different point in time versions of a virtual machine may be captured and stored using one or more snapshot chains. Each snapshot chain may correspond with a base image (e.g., a full image snapshot) and one or more incremental files (e.g., two forward incremental files) that derive from the base image. A snapshot chain may be split into a plurality of shards or sub-chains such that the width of each shard or the maximum data size of the files in each shard is less than a threshold data size (e.g., is less than 1TB). Data operations (e.g., consolidation and reverse operations) may be performed on the individual shards or sub-chains in parallel.