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Method for dynamic transferring data and its storing system

A technology of dynamic migration and data, applied in the direction of memory address/allocation/relocation, input/output to record carrier, etc., which can solve the problems of waste of system resources, data management and maintenance, and inability to reflect data objects, etc.

Inactive Publication Date: 2004-03-10
LENOVO (BEIJING) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing databases cannot reflect this change in access to data objects. Data objects rarely change once they have been stored, and the management and maintenance of data objects by the database is based on the collection of all data objects stored in the entire database.
Therefore, a large amount of system resources are wasted on the management and maintenance of data with low access probability

Method used

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  • Method for dynamic transferring data and its storing system
  • Method for dynamic transferring data and its storing system
  • Method for dynamic transferring data and its storing system

Examples

Experimental program
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Embodiment Construction

[0020] Embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0021] With the popularization of high-speed Internet and the emergence of high-speed Internet access, the universal and in-depth multimedia and information are greatly enriched, and the storage capacity doubles every year. NAS devices are completely data-centric, completely separate storage devices from servers, and centralize data management, thereby effectively releasing bandwidth, greatly improving overall network performance, and effectively reducing total cost of ownership. The current data storage software is becoming more and more mature,

[0022] The present invention considers that the accessed data objects are divided into hot data and unpopular data according to the probability of data objects being accessed. Among them, the hot data objects are the data objects with frequent data operations in the investigated time period; the unpopular data object...

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Abstract

The method includes following steps. Based on access probability, data object is stored in first storage area and second storage area. When request of external device accesses data object, data object is searched in first storage area first. If the data object is not in the first storage area, then search is carried out in the second storage area. Result of accessing data object is recorded, and probability of accessing data object is calculated. If the said probability is larger than or equal to preset threshold, then the relevant data object is held in the first storage area or the relevant data object is moved from the second storage area to the first storage area. If the said probability is less than preset threshold, then the relevant data object is held in the second storage area or the relevant data object is moved from the first storage area to the second storage area. Moreover, the invention also discloses devices for dynamic transferring data.

Description

technical field [0001] The present invention relates to a method and device for dynamically migrating data, in particular, to a method of dynamically migrating data according to the change of the access frequency of the data object, and partitioning and storing the data object according to the access probability of the data object to speed up the data access speed methods and devices. Background technique [0002] Data storage backup technology and storage management originated from the terminal / host computing model in the 1970s. At that time, because data was concentrated on the host, easy-to-manage mass storage devices, tape libraries were necessary equipment at that time. After the 1980s, due to the development of PCs, especially the popularization of the most widely used client / server model and the development of the network in the 1990s, file servers and database servers on the network are often the places where key data is concentrated, while the client computer A cer...

Claims

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Application Information

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IPC IPC(8): G06F3/06
Inventor 朱刚刘旸于辰涛
Owner LENOVO (BEIJING) CO LTD
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