Invention Grant
- Patent Title: Method and apparatus for data backup in storage system
-
Application No.: US15909613Application Date: 2018-03-01
-
Publication No.: US10176058B2Publication Date: 2019-01-08
- Inventor: Chengwei Zhang , Chuanshuai Yu , Zongquan Zhang
- Applicant: HUAWEI TECHNOLOGIES CO., LTD.
- Applicant Address: CN Shenzhen
- Assignee: Huawei Technologies Co., Ltd.
- Current Assignee: Huawei Technologies Co., Ltd.
- Current Assignee Address: CN Shenzhen
- Agency: Leydig, Voit & Mayer, Ltd.
- Main IPC: G06F3/06
- IPC: G06F3/06 ; G06F11/14 ; H03M7/46 ; H03M13/15 ; G06F11/20

Abstract:
Embodiments of the present disclosure disclose a solution for data backup and recovery in a storage system. When a source device in the storage system backs up, to a backup-end device, a data block that is written after a snapshot Sn, the source device performs a logical operation such as an exclusive-NOR or exclusive-OR operation on the written data block and an original data block, which is recorded in the snapshot Sn, of the written data block, and then compresses a data block obtained after the logical operation, which improves a compression ratio of a data block, thereby reducing an amount of data that is sent to the backup-end device, and saving transmission bandwidth. The solution may be further applied to a scenario of data recovery in a storage system.
Public/Granted literature
- US20180189151A1 METHOD AND APPARATUS FOR DATA BACKUP IN STORAGE SYSTEM Public/Granted day:2018-07-05
Information query