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Data processing method and device

A data processing and data technology, applied in the storage field, can solve the problem that data cannot be restored to any point in time, but can only be restored to the snapshot time point, etc., to achieve the effect of reducing occupancy

Active Publication Date: 2017-01-11
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technology cannot restore data to any point in time, but only to the point in time of the snapshot

Method used

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Embodiment Construction

[0042] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0043] The data processing method provided by the embodiment of the present invention can be implemented on a storage system, such as Figure 1a As shown, the storage system includes hosts, storage devices and connection devices.

[0044] A host may include any computing device known in the art, such as a server, desktop computer, and the like. Inside the host, an operating system and other applications are installed.

[0045] The storage device may include storage devices known in the current technology, such as redundant array of independent disks (Redundant Arrays of Independent Disks, RAID), disk clusters (Just a Bunch Of Disks, JBOD), direct access storage (Direct Access Storage Device, DASD), one or more interconnected disk driv...

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Abstract

The invention discloses a data processing method and apparatus and belongs to the technical field of storage. The method includes receiving a data writing request which comprises a logical address and data; assigning a physical address to the logical address; creating a mapping relation which comprises the corresponding relation between key information and data in accordance with time information of receiving the data writing request, wherein the key information comprises the time information, the logical addresses and the physical addresses; storing the mapping relation in a memory. The data processing method and apparatus can store the data written through the same logical address at different time in different physical address and different time information, so that the data can be recovered on base of random time in the subsequent recovery process; actual data backup is omitted, so that the occupation of system resources is reduced.

Description

technical field [0001] The invention relates to the field of storage technology, in particular to a data processing method and device. Background technique [0002] Currently, a snapshot method is generally used in a storage system to implement data backup. The time point for snapshot is set in advance, and the data stored in the address to be written in the IO request is regularly snapshotted. When the data at a certain time point needs to be restored, the snapshot data is converted into backup or copy data. However, this technology cannot restore data to any point in time, but only to a snapshot point in time. Contents of the invention [0003] In order to solve the problems in the prior art, embodiments of the present invention provide a data processing method and device. Described technical scheme is as follows: [0004] In a first aspect, a data processing method is provided, the method is applied to a storage device, the storage device includes a memory, and the m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F12/02G06F11/14
Inventor 代海军
Owner HUAWEI TECH CO LTD
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