Differential data backup method and differential data backup device

A differential data and backup technology, applied in the storage field, can solve problems that affect the efficiency of production array processing data and data inconsistency, and achieve the effect of ensuring data consistency and improving efficiency

Active Publication Date: 2017-05-31
HUAWEI TECH CO LTD
View PDF13 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in order to ensure the data consistency between the production array and the disaster recovery array, the production array needs to suspend the write data request before creating the snapshot, so as to prevent the changed data from not bei

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Differential data backup method and differential data backup device
  • Differential data backup method and differential data backup device
  • Differential data backup method and differential data backup device

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0025] The embodiment of the present invention proposes a data backup method and storage system, which can avoid suspension of writing data requests, thereby improving the efficiency of data processing.

[0026] The following describes the application scenarios of the embodiments of the present invention.

[0027] Such as figure 1 As shown, figure 1 Depicts a composition diagram of a storage system 10 provided by an embodiment of the present invention, figure 1 The illustrated storage system 10 includes one or more hosts 40 and a storage device 20. The host can be a computing device, such as a server, a desktop computer, and other terminal devices. The storage device 20 may be a storage device based on block data, such as a storage area network (Storage Area Networking, SAN) device, or a storage device including a file system, such as a network attached storage (Network Attached Storage, NAS) device. This embodiment does not set any limitation on the type of storage device. Betwe...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a differential data backup method, a differential data backup device and a storage system. The storage system comprises a processor, production volume and target volume. The records of the differential data between two serial numbers are obtained by the processor, and the serial numbers are used to identify the time segment of the data written into the production volume. The first serial number in the two serial numbers is an allocated serial number of data received by the production volume at the most recent time before the creation of the first snapshot of the production volume, the second serial number in the two serial numbers is an allocated serial number of data received by the production volume at the most recent time after the creation of the second snapshot of the production volume. The records of the differential data comprise the logical addresses of the differential data received within the time segment identified by all the serial numbers between the two serial numbers. The backup data are obtained from the second snapshot by the processor according to the records of the differential data, and are sent to the target volume. The suspension of data writing requests can be avoided, and the efficiency of data processing by the storage system is increased.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of storage, in particular, a differential data backup method and a differential data backup device. Background technique [0002] A typical data disaster recovery system includes a production center and a disaster recovery center. In the production center, hosts and storage arrays are deployed for normal business operation; in the disaster recovery center, hosts and storage arrays are deployed for taking over the business after a disaster occurs in the production center. Wherein, the storage array of the production center or the disaster recovery center includes multiple data volumes, and the data volume is a segment of logical storage space mapped from the physical storage space. After the data generated by the business of the production center is written into the production array, it can be backed up to the disaster recovery center through the disaster recovery link and written i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G06F11/14
CPCG06F11/1448G06F11/1469
Inventor 廖基祥欧阳戟
Owner HUAWEI TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap