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Disk data recovery method

A disk data recovery and data technology, which is applied in the direction of data error detection, response error generation, program control device and other directions, can solve the problem of not realizing instant recovery and achieve the effect of instant availability

Inactive Publication Date: 2013-10-02
EISOO SOFTWARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] In the prior art disk data recovery method, after switching to a mirrored volume or a snapshot volume at a certain point in time, user services are guaranteed to be available immediately, but afterward, a relatively long time window is still required to stop user services and perform mirroring. Synchronization or backup copy of snapshot data, so this method does not achieve real instant recovery, but only moves the downtime later. For some systems that need to run continuously all day or all week, this method is impossible accepted

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Embodiment Construction

[0041] The embodiment of the present application provides a disk data instant recovery method based on iSCSI virtual disk technology, so as to realize the instant recovery of disk data, specifically including:

[0042] A. According to the time when the disk data damage of the source volume occurs, select the latest snapshot time point data, mount the latest snapshot time point data on the user server through iSCSI technology, and generate iSCSI virtual disk backup data, the iSCSI virtual disk The backup data contains the file data that needs to be restored;

[0043] B. Transfer the file data to be restored in the iSCSI virtual disk to the source volume.

[0044] The technical solutions in the embodiments of the present application are clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all of them....

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Abstract

The invention discloses a disk data recovery method which comprises the steps that A, latest snapshot time point data is selected according to the damage time of disk data of a source book; the latest snapshot time point data is mounted on a user server by an iSCSI (Internet Small Computer System Interface) technology; iSCSI virtual disk back-up data is generated, wherein the iSCSI virtual disk back-up data comprises file data required to be recovered; and B, the file data, required to be recovered, in an iSCSI virtual disk is transferred to the source book. With the adoption of the technical scheme, a user service is not required to be suspended, and instant recovery of the disk data can be achieved.

Description

technical field [0001] The present application relates to the technical field of data protection and disaster recovery, in particular to a disk data recovery method based on iSCSI virtual disk technology. Background technique [0002] In the information society, especially in the era of big data, the value of data is highlighted, but data damage or loss occurs from time to time due to various subjective or objective reasons in daily life, which has brought great harm to enterprises and users. data protection is becoming extremely important and urgent. [0003] When data is damaged, traditional disk data recovery techniques generally include two methods: [0004] (1) Mirror copy - use the mirror volume to copy the data in the mirror volume back to the source volume; [0005] (2) Offline snapshot - use snapshot data for offline incremental recovery. [0006] The disk data recovery process of the prior art is as follows: figure 1 shown, including the following steps: [00...

Claims

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Application Information

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IPC IPC(8): G06F11/14G06F9/455
Inventor 李忠文
Owner EISOO SOFTWARE
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