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Overall hot backup method for multiple controllers

A multi-controller and multi-controller technology, applied in the direction of input/output to the record carrier, etc., can solve the problems of wasting hot backup resources, difficult to expand, and cannot achieve multiple hot backup reconstructions, so as to ensure data security, The effect of improving utilization rate and reducing enterprise cost

Inactive Publication Date: 2013-04-03
LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Traditional RAID hot backup is aimed at a certain dedicated RAID, which greatly wastes hot backup resources, is not easy to expand, and cannot achieve multiple hot backup reconstructions.

Method used

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  • Overall hot backup method for multiple controllers
  • Overall hot backup method for multiple controllers
  • Overall hot backup method for multiple controllers

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Experimental program
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Effect test

Embodiment

[0021] As described in the summary of the invention, the system structure of the present invention includes: a SAS switch, a controller back-end card is a SAS card, a JBOD disk is a SAS disk and a hot standby reconstruction module.

[0022] A high-end eight-control disk array is composed of eight controllers, and each controller has a front-end card and a back-end card. The front-end card is a 10 Gigabit Ethernet card, used to connect to the front-end host (various servers), the back-end card is a SAS card, the SAS card is connected to the SAS switch, and the SAS switch is connected to the JBOD disk. Each controller is connected to 3 JBOD disks. Plus a global hot spare JBOD disk, the controllers are connected to each other through the IB network.

[0023] The hot spare reconstruction module monitors the status of each RAID in real time. When a certain RAID is detected to have a bad disk and the RAID is degraded, the hot spare disk in the JBOD disk is added to the RAID to reali...

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PUM

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Abstract

The invention provides an overall hot backup method for multiple controllers. In the method, a high-end eight-control disc array is composed of eight controllers; each controller is provided with a front end card and a rear end card; the front end cards are 10-gigabit Ethernet cards, and are used for connecting with a front end host machine or various servers; the rear end cards are SAS (Serial Attached SCSI) cards, and are connected with a SAS switch; the SAS switch is connected with JBOD (Just Bundle Of Disks) discs; each controller is correspondingly connected with three JBOD discs and an overall hot backup JBOD disc; and the hot backup JBOD discs are shared for the overall storage system. According to the invention, the reliability of the storage system is improved, the data security is ensured, the utilization rate of stored resources is improved, and the enterprise cost is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of computer application, in particular to a global hot backup method among multiple controllers. Background technique [0002] The low reliability of data storage has always been a headache for IT personnel. When important data of an enterprise is lost or damaged, it will face various business problems and even seriously affect the normal operation of the enterprise. In order to improve data storage security, RAID (Redundant Array of Independent Disks) is proposed. [0003] RAID technology combines multiple individual physical hard disks into a logical hard disk in different ways, thereby improving the read / write performance and data security of the hard disk. [0004] Hot backup means that when a hard disk in a redundant RAID group fails, without interfering with the normal use of the current RAID system, another normal spare hard disk in the RAID system will automatically replace the failed hard disk, ens...

Claims

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Application Information

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IPC IPC(8): G06F3/06
Inventor 周耀辉
Owner LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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