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Method of substituting conventional SCSI disk for optical fiber disk in storage optical-fiber network

A technology of disk array and storage area network, which is applied in the directions of memory address/allocation/relocation, program control device, software simulation/interpretation/simulation, etc., and can solve problems such as high price, difficult storage capacity, and poor flexibility

Inactive Publication Date: 2005-06-08
TSINGHUA UNIV
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional storage area network (Storage Area Network, referred to as SAN) architecture system needs to use fiber optic disk arrays and can only be built on fiber optic networks. Therefore, the entire system has disadvantages such as high price, poor flexibility, and difficult expansion of storage capacity.

Method used

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  • Method of substituting conventional SCSI disk for optical fiber disk in storage optical-fiber network
  • Method of substituting conventional SCSI disk for optical fiber disk in storage optical-fiber network
  • Method of substituting conventional SCSI disk for optical fiber disk in storage optical-fiber network

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Embodiment Construction

[0042] The actual physical model of the system is as figure 2 shown. In this method, optical signals on the network are restored to SCSI commands or messages by using a fiber channel card, and then controlled and executed by means of software, and the data is returned, so that the simulation of the actual optical fiber disk array can be completed. A fiber channel card is used in the storage node to connect to the fiber optic network and convert the above signal into SCSI commands or messages, which are sent to the storage node machine for processing to realize the function of the fiber optic disk array.

[0043] In the present invention, the strategy of dividing and conquering commands and messages is adopted to process them separately. Since the behavior of the fiber optic disk array needs to be simulated, it is necessary to study the processing method of the fiber optic disk array, and the SCSI commands that the fiber optic disk array can handle must be processed.

[0044...

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Abstract

The method of replacing the optical fiber disk array in the storage area network with an ordinary SCSI disk belongs to the technical field of the storage area network, and is characterized in that it is a method based on the fiber channel card HBA and the SCSI disk, using the storage node at the target end to control the mainframe A storage control method that stores the simulation target module to control the transmission of information on the network and simulates the behavior of the fiber optic disk array. The simulation target contains the following modules: SCSI command processing, SCSI message processing, command / data reception, command / Data sending, SCSI command queue control, SCSI message queue control and storage disk information queue module. The method has the advantages of strong flexibility, various construction modes, can be constructed on the Ethernet or the optical fiber network, and can work on two sets of networks at the same time, has the advantages of selectivity and high performance-price ratio.

Description

technical field [0001] A method for replacing an optical fiber disk array in a storage area network with a common SCSI disk belongs to the field of storage area networks, and particularly relates to the field of storage technology therein. Background technique [0002] With the increasing amount of network data, massive data storage has become an urgent problem to be solved in network development. Network storage equipment provides information access and sharing services for information systems, and its super large capacity, ultra-high-speed data transmission rate and high system availability have become typical features of network storage. Due to the widespread adoption of the client / server model in recent years, each server has its own storage system, and information is scattered to each server, forming a so-called "information island", which is very unfavorable for information integration and data sharing. Network storage is a new secure storage structure and technology ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/30G06F9/455G06F12/06
Inventor 舒继武郑纬民李必刚付长冬
Owner TSINGHUA UNIV
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