Data storage method and device

A technology for storing data and data, which is applied in the field of storing data, can solve problems such as complex calculations, slow file access speed, and low utilization rate of cluster systems, and achieve the effects of improving access speed, ensuring access speed, and improving reliability

Active Publication Date: 2015-01-14
TOYOU FEIJI ELECTRONICS
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Problems solved by technology

Although erasure coding improves availability and storage utilization, erasure coding technology requires complex calculations, and file access speed is slower than multi-copy technology.
[0005] In addition, data also has a life cycle, and different periods have different meanings. For example, when data is first generated, the access frequency is relatively high, and the value of the data is also the highest. However, as time goes by, the access frequency decreases, and the value of the data also decreases. However, the cluster systems in the prior art all use a single redundant technology to store data, and the utilization rate of the cluster system is not high

Method used

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Embodiment Construction

[0021] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0022] see figure 1 The data storage device 20 includes a calculation module 202 , a first judgment module 203 and a first storage module 204 .

[0023] The calculation module 202 receives the access request for accessing the first data, records the access times and access time of the first data, and calculates the access frequency of the first data according to the access times and access time. Record the number of visits to the first data within this time period, then divide the number of visits by 24 hours to obtain the visit frequency of the first data per hour. The specific time limit for calculating the visit frequency of the first data can be set according to the actual situation. Certainly. The access request may come from a client, such as a computer, a mobile terminal, etc., or the user directly operates on the data storage device 20 to ac...

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Abstract

The invention discloses a data storage method and device. The method comprises the following steps that when an access request for accessing first data is received, the number of access times and the access time of the first data are recorded, and the access frequency of the first data is calculated according to the number of access times and the access time; whether the access frequency exceeds a first preset value or not is judged, and whether the storage type of the first data is erasure code storage or copy storage is judged; if the number of access times exceeds the first preset value, and in addition, the storage type of the first data is the erasure code storage, the first data is re-stored according to a copy algorithm, and in addition, the storage type of the first data is marked into the copy storage. Through the mode, the access speed of the data storage device can be ensured, the reliability of the data storage device can also be ensured, and the utilization rate of the data storage device is improved.

Description

technical field [0001] The invention relates to the technical field of data storage, in particular to a method and device for storing data. Background technique [0002] With the development of computer technology and network technology, data is growing at an explosive rate. According to the research figures of a research institution, the data stored on the network has reached 0.8ZB in 2009, and it is expected to reach 35.2ZB in 2020. Massive storage data puts higher requirements on the data storage system. In order to ensure the availability of massive stored data, cluster systems are usually used to store data based on redundancy technology, where redundancy technology includes multi-copy technology or erasure code technology. [0003] Multi-copy technology refers to copying N copies of data and storing them in different nodes in the cluster system. If the data in one of the nodes is damaged, the damaged data can be recovered from other nodes. Although the multi-copy tech...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/02G06F11/08G06F11/14
Inventor 程茂张勤
Owner TOYOU FEIJI ELECTRONICS
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