Resuming copying of snapshots from a storage system to cloud storage
US10992768B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2020 |
| Grant date | Apr 27, 2021 |
| Priority date | — |
| Expiry date | Mar 20, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/568
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An apparatus comprises a processing device configured to detect a request to resume copying of a snapshot of a storage volume from a storage system to cloud storage, to determine an original snapshot differential for the snapshot comprising differential data of the storage volume on the storage system, and to obtain checkpointing information for the snapshot characterizing a status of copying portions of the snapshot to the cloud storage. The processing device is also configured to generate a resume snapshot differential for the snapshot comprising portions of the snapshot to be copied to the cloud storage determined based at least in part on a comparison of the original snapshot differential with the checkpointing information characterizing the status of copying the one or more portions of the snapshot to the cloud storage. The processing device is further configured to resume copying of the snapshot utilizing the resume snapshot differential.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.