Hard disk file system suitable for security application and operation method thereof

Abstract

The invention discloses a hard disk file system suitable for security application and an operation method thereof. A hard disk space is divided, a management block and a plurality of storage blocks are arranged, the management block is used for conducting distinguishing management on a hard disk and the storage blocks, the storage blocks are independent of one another and do not affect one another, and therefore efficient and safe multi-channel data operation and retrieval functions are achieved. According to the hard disk file system suitable for security application and the operation method thereof, a file system structure is programmed, multichannel writing is better achieved, and the demand for multichannel real-time writing and synchronous playback is efficiently met; the safety of a file system is improved, and the file system is effectively prevented from being damaged; meanwhile, the management function is complete, and efficient using is convenient.

Description

technical field [0001] The invention relates to the technical field of information storage and application in the security field, and more particularly, to a preferred hard disk file system suitable for security applications, and an operation method based on the system. Background technique [0002] With the development of science and technology in recent years, data has also exploded, and users have put forward higher requirements for data storage and use. Therefore, the basic disk capacity is also increasing, and 4T hard disks will soon be widely used. However, the existing general hard disk file systems such as the fat32 file system have limitations on disk capacity, partition size, file cluster size, and file size, so the fat32 system can no longer be well suited for various needs. [0003] For example, now dvr and nvr have more and more requirements for code stream and resolution, and the number of channels is also increasing. Due to the limitation of fat32 on file size...

AI Technical Summary

Problems solved by technology

However, the existing general-purpose hard disk file system, such as the fat32 file system, has limitations on disk capacity, partition size, file cluster size, and file size, so the fat32 system is no longer able to meet various needs.

[0003] For example, now dvr and nvr have more and more requirements on code stream and definition, and the number of channels is also increasing. Due to the limitation of file size by fat32, the data has to be divided into files, which leads to the The stored data time is too short, which makes the data fragmented, increases the splicing times of files and files, and increases the probability of frame loss

At the same time, due to the large amount of data in dvr and nvr, the hard disk will be in a rewriting state after it is full. After multiple overwrites, the data will be more fragmented and a large number of fragments will be generated, resulting in lower efficiency.

In addition, the increase of code stream and channel increases the requirements for read and write efficiency, and the amount of data read in the same time is also greatly increased. Since the fat32 file system adopts the form of fat table, the read and write efficiency of files is low. For The writing of multi-channel data and the search efficiency of events are relatively inefficient and cannot meet higher requirements

[0004] In addition, the fat32 file system has no power-off protection, and there is no effective solution for the repair and integrity of key frames, events, code streams after power-off, so it will lead to data loss and incompleteness; moreover, its allocation table is concentrated in A part of the hard disk, the reading and writing of files will be frequently operated, making the magnetic head keep reading and writing on the same part of the disk, reducing the life of this track, thereby reducing the overall disk life, and when allocated When the table is damaged, a large amount of data will be lost and cannot be repaired

[0005] To sum up, due to the characteristics of low reading and writing efficiency and low file security, the application of general hard disk file system in various industries is becoming more and more inefficient. For example, when it is applied to the security industry that requires large-scale data, it cannot Better meet the fluency of real-time video recording and synchronous playback, and the security requirements for video files are not fully met, which affects the overall performance

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