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Storage medium processing method, system and data read-write operation method and system

A technology of storage media and processing methods, applied in the field of data storage, to achieve the effects of simplifying storage management, prolonging the reinvestment cycle, and realizing efficient use

Inactive Publication Date: 2009-09-09
杭州信核数据科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] In view of this, the main purpose of the present invention is to provide a method and system for processing storage media, thereby virtualizing limited-capacity and limited-number physical storage media into large-capacity, dynamically allocated virtual storage that is several times larger than the actual capacity Medium, solve the problem of user expansion and efficient use of resources

Method used

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  • Storage medium processing method, system and data read-write operation method and system

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Embodiment Construction

[0071] The main idea of ​​the present invention is to create a virtual storage medium, establish a corresponding relationship between the physical storage medium and the virtual storage medium, and provide the virtual storage medium to the operating system when the operating system scans the storage device. When the IO subsystem issues data read and write instructions, the virtual storage device maps the data read and write instructions to the physical storage medium according to the established correspondence, and performs corresponding read and write operations. In this way, by establishing a virtual storage medium device object, a dynamic and effective allocation management mechanism can be provided for the physical storage medium, and the physical storage medium can be fully utilized, thereby solving the problems of user expansion and balanced consumption of resources.

[0072] The method and system of the present invention will be described in detail below with reference t...

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Abstract

The invention provides a method and a system for storage media access as well as a method and a system of data access and operation. The processing method of storage media contains the steps as follows: step (A), set virtual address comparison table of physical storage media and record physical storage media collection, physical storage media and corresponding relation among virtual storage media; step (B), add device identification of physical storage media to corresponding units of virtual address comparison table; step (C), create virtual storage media device object corresponded with physical storage media collection, and register to driver module of virtual SCSI port. The device identification of virtual storage media will be recorded in the corresponding units of virtual address comparison table. Fourthly, virtual SCSI port driver module registers device object of virtual storage media to operation system. The invention has the advantages of efficient application in physical storage media and storage thermal dilatancy, reduces storage investment, extends investment cycle, and simplifies storage management.

Description

technical field [0001] The invention relates to data storage technology, in particular to a method and system for virtualizing computer storage media. Background technique [0002] Computer data is stored on computer physical storage media. The data storage unit on the computer's physical storage medium is a data block. When data is written into the computer, it is written into a data block with a fixed address, and when needed, the data is read from this data block. The capacity of a computer's physical storage medium is the sum of the capacities of all data blocks on the physical storage medium. The capacity of the physical storage medium presented to the user by the computer is a fixed, actual value determined by the physical storage medium itself. [0003] figure 1 It is a flow chart of data reading and writing in the prior art. As shown in the figure, data reading and writing in the prior art includes the following steps: [0004] Step 101: The IO (Input-Output, in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/06G06F12/08G06F12/1009G06F12/1081
Inventor 任永坚陈烨
Owner 杭州信核数据科技股份有限公司
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