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Storage method of index data and storage control device

An index data and storage control technology, applied in the field of communication, can solve the problems affecting the performance of writing data, the random rate of large IO reading and writing, and the efficiency of hard disk data transmission, so as to reduce the random rate of disk reading and writing and improve the efficiency

Inactive Publication Date: 2010-02-10
NEW H3C TECH CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

This produces a very large IO read / write random rate when storing streams at low bit rates, and introduces head seek time, which affects the efficiency of data transmission inside the hard disk and affects the performance of writing data.

Method used

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  • Storage method of index data and storage control device
  • Storage method of index data and storage control device
  • Storage method of index data and storage control device

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Embodiment Construction

[0049] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0050] In the prior art, when the monitoring video data is stored in the hard disk, an index data is written after each I frame group is written, so that the data is stored in the hard disk in a random write. In the index data storage method provided by the present invention, the time for writing index data to the hard disk is modified, and the index data that needs to be written to the hard disk is cached in advance. When the cached index data reaches...

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Abstract

The invention discloses a storage method of index data and a storage control device; the method comprises the following steps: index data of a disk of a coder, which is needed to be stored to a storage device, is cached; when the quantity of the cached index data reaches preset threshold, or a trigger event is detected, the cached index data is stored to the disk. By adopting the invention, the efficiency on reading-in the index data and video data to the disk can be improved.

Description

technical field [0001] The invention relates to the communication field, in particular to a method for storing index data and a storage control device. Background technique [0002] In the magnetic disk used in the existing storage device, data is stored on the platter of the magnetic disk, and the read and write of the data locates the specific position through the movement of the magnetic head arm and the platter itself. At present, the development of precision instruments has increased the speed of the disk to tens of thousands of revolutions per minute, but it is still very low compared with the transmission speed of the circuit in the computer. The time required for the head of the hard disk to move from the initial position to the specified track on the disk surface is called the average seek time of the hard disk, and is an important parameter affecting the internal data transmission rate of the hard disk. The average seek time of the currently used disk is around 7m...

Claims

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Application Information

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IPC IPC(8): G06F3/06G06F17/30
Inventor 郭琪苏佳杨西平
Owner NEW H3C TECH CO LTD