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Power-down data protection method and device of storage system

A storage system and protection device technology, applied in the field of storage system power-down data protection, can solve the problems of high software cost and hardware cost, and achieve high software cost and hardware cost, ensure safety and durability, and low cost Effect

Active Publication Date: 2015-09-02
BEIJING FORTUNET INFORMATION & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Based on this, it is necessary to provide a storage system power-down data protection method and device for the problems of high software and hardware costs in existing storage system power-down data protection methods

Method used

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  • Power-down data protection method and device of storage system
  • Power-down data protection method and device of storage system

Examples

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specific Embodiment

[0065] see figure 1 , as a specific embodiment of the storage system power-down data protection method of the present invention, comprising the following steps:

[0066] In step S100, it is detected in real time whether a power failure event occurs in the storage system.

[0067] Step S200, when a power failure event occurs in the storage system, control the power supply of the storage system to switch from the main power supply to the backup power supply.

[0068] Step S300, controlling the storage of all valid data in the cache in the storage system to the non-volatile storage medium.

[0069] Wherein, the backup power source is a power type power battery.

[0070] The power-down data protection method of the storage system of the present invention detects in real time whether a power-down event occurs in the storage system, and when a power-down event occurs in the storage system is detected, the power supply of the storage system is controlled to switch from the main pow...

Embodiment approach

[0090] Preferably, as an implementable method of the storage system power-down data protection method of the present invention, the following steps are further included:

[0091] Step S100', real-time monitoring of the actual battery capacity of the backup power supply.

[0092] Step S200', when the ratio of the actual battery capacity of the backup power supply to the rated battery capacity of the backup power supply is less than the preset value, control the main power supply to continue charging the backup power supply through the charging circuit until the ratio of the actual battery capacity to the rated battery capacity is 1 .

[0093] It monitors the actual battery capacity of the backup power supply in real time, when the ratio of the actual battery capacity of the backup power supply to the rated battery capacity of the backup power supply is less than the preset value (the value range of the preset value can be set to [0.1, 0.4]) , that is, when the monitored actual...

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Abstract

The invention discloses a power-down data protection method and device of a storage system. The method includes the steps of detecting whether power-down occurs in the storage system occurs in real time; if yes, controlling a power supply of the storage system to switch from a main supply to a standby supply; controlling effective data, located in a cache of the storage system, to be all stored to a nonvolatile memory medium. After the power-down of the storage system is detected, the standby supply is used to power the storage system, and the effective data in the cache of the storage system is controlled and all stored to the nonvolatile memory medium; thus, security and persistence of the effective data in the cache is guaranteed. The standby supply is a power type battery low in cost; the problem that the existing storage system power-down data protection mode has high software and hardware costs is effectively solved.

Description

technical field [0001] The invention relates to the field of computer storage, in particular to a method and device for protecting data from power failure of a storage system. Background technique [0002] With the advent of the era of big data, the data demand of enterprises is increasing, and the requirements for data security are getting higher and higher. Generally, the process of storing data in a storage system is as follows: the data is first written to the memory, becomes the system cache, and then written from the memory to the hard disk. Since the memory where the cache is located is a volatile storage medium, during the process of writing data to the hard disk through the memory, if the system suddenly loses power, all the data in the memory that has not been written to the hard disk will be lost. When an unexpected power failure occurs, the storage system must write the valid data in the memory to the hard disk for storage to ensure data security. [0003] At p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/16G06F1/30
Inventor 陈杰
Owner BEIJING FORTUNET INFORMATION & TECH
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