Large file storage method

A technology for large files and data files, applied in file systems, file access structures, file/folder operations, etc. Effect

Inactive Publication Date: 2014-08-06
ZHEJIANG UNIVIEW TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] With the development of high-definition cameras in surveillance systems, larger files need to be stored for the same length of video, but at the same time the reliability of the files must be guaranteed. Currently, the ext3 file system of Linux can theoretically reach a maximum file size of 4T, but generally when using All cannot be larger than 2G, because when the file system is abnormal such as power failure, once the index area is a

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  • Large file storage method

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Embodiment Construction

[0014] Please refer to figure 1 The large file mapping scheme shown. A large file, such as BigFile1, is mapped to multiple directories of multiple file systems, such as the directory Dir-0-1-2 under C:\, the directory Dir-1-2-3 under D:\, and the directory Dir-1-2-3 under E:\ The directory Dir-2-3-4 under F:\, the directory Dir-4-5-0 under F:\. Of course, it is also possible for several of the directories to belong to the same file system. For example, the directory Dir-0-1-2 and the directory Dir-1-2-3 all belong to the directory under C:\. The size of a single data file in each directory is fixed, for example, the file size of a single data file File1, File2, ... FileN is 1G. The maximum number of data files stored in each directory is limited. Select the type of file system for storage. Of course, it is also possible to map the large file to a directory of a file system. If the data volume of the large file is not particularly large, after mapping to a directory of a fi...

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Abstract

The invention provides a large file storage method. The large file storage method comprises the steps that a large file is mapped into at least one catalog of at least one file system; an index of the large file records an initial address of a first catalog after mapping, the address of a storage region where the index of the large file is located and basic information of the large file; a plurality of data files are included in each catalog after mapping of the large file. According to the scheme of the large file storage method, the storage safety of the large file is higher.

Description

technical field [0001] The invention relates to the technical field of video storage, in particular to a large file storage method. Background technique [0002] With the development of high-definition cameras in surveillance systems, larger files need to be stored for the same length of video, but at the same time the reliability of the files must be guaranteed. Currently, the ext3 file system of Linux can theoretically reach a maximum file size of 4T, but generally when using Both cannot be larger than 2G, because when the file system is abnormal such as power failure, once the index area is abnormal, more data will be lost for large files. [0003] Existing solutions do not optimize the monitoring business, but use common file systems such as XFS. Although the largest file can reach 9EB, using the file system to store large files is exactly the same. Unavoidable data abnormality and difficult recovery question. [0004] Using the file system, once an abnormality occurs ...

Claims

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Application Information

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IPC IPC(8): G06F17/30
CPCG06F16/16G06F16/13
Inventor 吕志明
Owner ZHEJIANG UNIVIEW TECH
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