Data protection device and data protection method for RAID (Redundant Array of Inexpensive Disks) card

A data protection and data technology, applied in the computer field, can solve the problems of data loss, economic loss of key data, etc., and achieve the effect of improving stability, promoting the use value, and ingeniously conceived.

Inactive Publication Date: 2015-05-27
LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, once the system power fails unexpectedly, the data stored in the cache will be lost when the cache is written, and the loss of key data may cause huge economic losses.

Method used

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  • Data protection device and data protection method for RAID (Redundant Array of Inexpensive Disks) card

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0017] A RAID card data protection device described in this embodiment, as attached figure 1 Shown, mainly comprise RAID card, Flash board and capacitance management board; Wherein, described Flash board is provided with NAND Flash storage unit, monitoring unit and charging and discharging unit, described capacitance management board is provided with supercapacitor; Described Flash board Responsible for communicating with the RAID card and the capacitor management board, monitoring the status of the RAID card and capacitors, and communicating with the capacitor management board through the Cable. In addition, the supercapacitor can be fully charged within 4 minutes, and its service life is usually 5 years, which ensures the stability and durability of the performance of the RAID card data protection device. attached figure 1 Among them, cap1 and cap2 represent two supercapacitors 。

[0018] In the RAID card data protection device described in this embodiment, the Flash boar...

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PUM

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Abstract

The invention discloses a data protection device and a data protection method for an RAID (Redundant Array of Inexpensive Disks) card. A Nand flash technology and a super capacitor technology are combined; when a system is unexpectedly powered off, cache data of the RAID card are protected. The data protection device for the RAID card comprises the RAID card, a Flash board and a capacitor management board, wherein the Flash board is responsible for communicating with the RAID card and the capacitor management board and monitoring the states of the RAID card and a capacitor; when the system is powered off, important data of the RAID card are enabled to be kept in an activated state by a super capacitor, so that the data are allowed to be copied from an RAID card onboard cache to the Flash. According to the data protection device and the data protection method disclosed by the invention, the data of the RAID card can be automatically cached, so the security of the data in the RAID card is guaranteed, and the stability of the system is improved.

Description

technical field [0001] The invention relates to the technical field of computers, in particular to a RAID card data protection device and method. Background technique [0002] RAID is a technology that combines multiple independent physical hard disks in different ways to form a logical hard disk, thereby providing higher storage performance and data redundancy than a single hard disk. The different ways to form a disk array are called RAID levels (RAID Levels). After continuous development, RAID technology now has seven basic RAID levels from RAID 0 to RAID 6. In addition, there are some combinations of basic RAID levels, such as RAID 10 / 01 (combination of RAID 0 and RAID 1), RAID 50 (combination of RAID 0 and RAID 5), etc. Different RAID levels represent different storage performance, data security and storage costs. [0003] Cable is a cable TV cable. Cable network is a network based on cable TV network. Cable access is a network access technology based on CATV (HFC)...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/16
Inventor 季恒杨明涛
Owner LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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