Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Data management method and system in mixed storage structure of flash disk

A hybrid storage and data management technology, applied in the field of data management, can solve the problems of high statistical frequency cost, long time, and limitation, and achieve the effects of reducing write operations, improving performance, and saving flash memory space

Inactive Publication Date: 2012-10-03
PEKING UNIV
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the storage and calculation costs of the statistical frequency are relatively high, and it takes a long time to find the page that needs to be replaced, which brings certain restrictions to the use of this method.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Data management method and system in mixed storage structure of flash disk
  • Data management method and system in mixed storage structure of flash disk
  • Data management method and system in mixed storage structure of flash disk

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0060] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0061] figure 1 It is a flowchart of a data management method in a flash disk hybrid storage structure according to an embodiment of the present invention; refer to figure 1 , the method includes the following steps:

[0062] S1: When the current page needs to be operated, determine whether the current page is in the memory, if so, directly perform the corresponding read / write operation on the current page in the memory, and end the method, otherwise execute Step S2;

[0063] S2: Determine whether the current page is in the flash memory, if so, execute step S3, otherwise execute step S5;

[0064] S3: Generate a first random number, if the first random number is less th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a data management method and system in a mixed storage structure of a flash disk, and relates to the technical field of data management. According to the invention, the operation of the page is controlled by probability, so that the flash storage space is saved, the write operation of flash storage is reduced and the data management performance is improved.

Description

technical field [0001] The invention relates to the technical field of data management, in particular to a data management method and system in a flash disk hybrid storage structure. Background technique [0002] Although flash memory technology has developed rapidly in recent years, compared with traditional disks, solid-state drives (SSDs) based on flash memory are still limited in capacity and high in price. At present, the capacity and price of solid-state drives are between disk and memory. Therefore, solid-state drives can be deployed between memory and disk to form a hybrid storage structure as a cache of disk data. [0003] A typical hybrid storage structure such as figure 1 As shown, all data storage and organization data pages on the hard disk. A page needs to be loaded into main memory before it can be accessed. Since flash memory has better performance compared to disk, it can act as a cache between main memory and disk, that is, when a page memory miss occurs...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G06F3/06G06F12/02
Inventor 崔斌吕雁飞李井
Owner PEKING UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com