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Data migration method and system used for hierarchical storage

A hierarchical storage and application system technology, applied in the direction of electrical digital data processing, input/output process of data processing, instruments, etc., can solve problems such as long access time, high storage cost, and low migration efficiency

Inactive Publication Date: 2018-09-04
AGRICULTURAL BANK OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The solutions in the existing technology are only based on the scale and frequency of use, ignoring other attributes such as time-consuming data migration, update frequency, data correlation, application system scoring, etc., which will result in low migration efficiency, high storage costs, and long access time

Method used

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  • Data migration method and system used for hierarchical storage
  • Data migration method and system used for hierarchical storage
  • Data migration method and system used for hierarchical storage

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Embodiment Construction

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0037] Such as figure 1 As shown, the present application discloses a flow chart of Embodiment 1 of a data migration method for hierarchical storage, including:

[0038] S101. Check whether the proportion of the used space in the online storage device is greater than or equal to the first preset threshold in a preset period, and if yes, execute S102; otherwise, execute S101 again;

[0039] Compare the size of the used space with the first preset threshold, if the used space is smal...

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Abstract

The invention discloses a data migration method used for hierarchical storage. The method comprises the steps of A: comparing whether a proportion of used spaces in an online storage device is greaterthan or equal to a first preset threshold by a preset cycle, and if yes, executing the step B, otherwise, re-executing the step A; B: when the proportion of the used spaces in the online storage device is greater than or equal to the first preset threshold, obtaining attribute information of all data tables in the online storage device, and executing the step C; C: based on the attribute information, calculating migration values of all the data tables, and executing the step D; D: migrating data corresponding to the data table with a maximum migration value in the online storage device to anoffline storage device, and executing the step E; and E: comparing whether the proportion of the used spaces in the online storage device is smaller than or equal to the second preset threshold, and if yes, executing the step A, otherwise, executing the step D. The purposes of high migration speed, large released space, small influence range and high access efficiency are achieved.

Description

technical field [0001] The present application relates to the technical field of data storage, and in particular to a data migration method and system for hierarchical storage. Background technique [0002] Hierarchical storage strategy refers to storing data in storage devices with different performance levels. Generally speaking, data with high access frequency, recent date, and high value is stored in online storage devices to ensure access efficiency; data with low access frequency, date Remote, low-value data storage and offline storage devices to reduce storage costs. The automatic migration of data between storage devices is realized through hierarchical storage management software. The rules of data migration can be controlled manually or automatically executed according to certain rules. The timing of migration is usually determined according to factors such as data access rate, capacity, and performance requirements. of. [0003] In the existing data migration sc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06
CPCG06F3/061G06F3/0647G06F3/0683
Inventor 张欣雨王勇余志天赵博汉卞乃文杨文龙
Owner AGRICULTURAL BANK OF CHINA
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