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Method and device for distributing magnetic disk tasks

A technology of task allocation and allocation method, applied in the field of disk task allocation method and device, can solve problems such as a wide range of data loss, and achieve the effects of improving utilization rate and operating efficiency, and balancing storage time

Active Publication Date: 2015-03-25
ZHEJIANG DAHUA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Embodiments of the present invention provide a method and device for allocating disk tasks to solve the problem of a wide range of data loss in the event of a disk failure in the prior art

Method used

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  • Method and device for distributing magnetic disk tasks
  • Method and device for distributing magnetic disk tasks
  • Method and device for distributing magnetic disk tasks

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Embodiment Construction

[0054] In order to reduce the range of data loss caused by disk failures, the embodiment of the present invention provides a Redundant Array of Independent Disks on CQFS (Redundant Array of Independent Disks on CQFS) based circular queue file system (Circular Queue File System, CQFS). RAIDC).

[0055] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0056] refer to figure 1 As shown, in the embodiment of the present invention, the specific flow of the management device for assigning disk tasks is as follows:

[0057] Step 100: In the initial configuration stage of the system, the management device determines various storage tasks to be executed, wherein each storage task is used to record all data acquired by a recording device.

[0058] In the embodiment of the present invention, the management device may be a user terminal, such as a personal computer, a notebook, etc., or a server, which will...

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PUM

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Abstract

The invention discloses a method and device for distributing magnetic disk tasks. The method comprises the steps of determining all storage tasks to be executed in a system initial configuration stage, wherein each storage task is used for recording all data obtained by one recording device, evenly distributing all the storage tasks to be executed to all magnetic disks and carrying out storage. Due to the fact that at the initial configuration stage, each storage task distributed to each magnetic disk represents all data obtained by one recording device and the storage tasks are independent from one another, when one magnetic disk breaks down, a management device can balance and switch the task on the breakdown magnetic disk to normal magnetic disks automatically, it is guaranteed that the future data of all the recording devices can continue to be stored, and the data loss range caused by the breakdown magnetic disk is reduced at the same time.

Description

technical field [0001] The invention relates to disk array technology, in particular to a method and device for allocating disk tasks. Background technique [0002] In the field of security monitoring, the video storage function is one of the core functions. In the security monitoring system, the camera generates audio and video data all the time, so a large amount of video data needs to be stored. The original Enhanced Virtual File System (ENVFS) adopts a dynamic load balancing strategy, that is, the data of all recording devices are dynamically distributed on each disk according to the file packaging time, so as to achieve the balance of data storage time. For example, suppose there are three recording devices A, B, and C, and three disks D, E, and F, and the file packaging time is 30 minutes. Each recording device randomly selects a disk. For example, if recording device A selects disk E, the recording Device A will assign its first 30 minutes of recorded data to Disk E...

Claims

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Application Information

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IPC IPC(8): G06F3/06G06F11/00
CPCG06F3/0604G06F3/0614G06F3/0631
Inventor 孙俊伟张兴明
Owner ZHEJIANG DAHUA TECH CO LTD
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