A method and device for managing data reading and writing
A technology for managing data and data blocks, applied in the computer field, can solve problems such as high cost of storage systems, frequent data migration, difficulty in adapting, etc., and achieve the effect of improving overall performance
Active Publication Date: 2017-06-13
INSPUR BEIJING ELECTRONICS INFORMATION IND
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[0004] The application number is "201010540729.X", and the application name is "A Distributed Hierarchical Storage System". It discloses that based on the network environment, data migration processing between multiple storage devices of different levels can be realized, and a policy server is required to implement specific operations. The whole system is relatively complex, the cost of the whole storage system is very high, and it cannot cope with the situation of single storage
[0005] The application number is "201110388104.0", and the application name is "a hierarchical storage system and method". Although it realizes the hierarchical processing of different storage media in a single storage system, it only realizes data migration to a specific layer for the random and sequential characteristics of IO on the storage medium
But in actual production environment, due to the specific business relevance of the data, it is difficult for this application to adapt to all situations
Therefore, simply using the method of this application will cause frequent data migration between different layers of media, thus affecting the overall performance of the storage system
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[0056] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.
[0057] figure 1 It is a flow chart of the method for managing data reading and writing in the present invention, such as figure 1 shown, including:
[0058] Step 101, when there is a data block I / O request, determine the total number of times of this data block I / O request and judge whether the total number of times of this data block I / O request exceeds a preset statistical threshold value, when the data block 1 When the total number of / O requests exceeds the preset statistical threshold, determine the heat score value of the data block.
[0059] It should be noted that ...
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The invention discloses a management data reading and writing method and device. The management data reading and writing method comprises the steps that when I / O requests of a data block are available, the total number of the I / O requests of the data block is determined, whether the total number of the I / O requests of the data block exceeds the preset counting threshold value or not is judged, and the heat grade value of the data block is determined when the total number of the I / O requests of the data block exceeds the preset counting threshold value; the determined heat grade value of the data block is compared with the preset heat grade value threshold value, and whether the storage position of the data block in the preset corresponding relation is updated or not is determined according to the comparison result; I / O operation of the data block is conducted according to the updated storage position of the data block in the preset corresponding relation. According to the technical scheme, the overall performance of a storage system is improved.
Description
technical field [0001] The invention relates to computer technology, in particular to a method and device for managing data reading and writing. Background technique [0002] With the development of computer technology, the storage system has gradually migrated from the computing system and gradually formed an independent device. Today, the entire computing system can be regarded as composed of three parts: computing nodes, switching nodes, and storage nodes. With the increasing computing capacity of computing nodes, higher and higher requirements are placed on the performance of the back-end storage system. [0003] Due to the influence of the mechanical structure, the overall performance of ordinary mechanical hard disks is generally low. The number of read and write (I / O) operations per second (IOPS) of ordinary mechanical hard disks is about 100 times. Even the IOPS of enterprise-level high-speed mechanical hard disks is not Will be more than 200 times. Therefore, the...
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IPC IPC(8): G06F3/06G06F12/0802
Inventor 张书宁徐旸刘友生
Owner INSPUR BEIJING ELECTRONICS INFORMATION IND