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

A storage area network and disk technology, which is applied in the field of storage and storage area network, can solve the problems of difficult storage capacity, poor flexibility, and expensive system

Inactive Publication Date: 2003-11-12
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • 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 disks 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

[0041] The actual physical model of the system is as figure 2 shown. In the method, the fiber channel card is used to restore the optical signal on the network to a SCSI command or message, and then the method is controlled and executed by means of software, and the data is returned to complete the simulation of the actual fiber optic disk. 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 handed over to the storage node machine for processing to realize the function of the fiber optic disk.

[0042] In the present invention, the strategy of dividing and conquering commands and messages is adopted to process them separately. Due to the need to simulate the behavior of fiber optic disks, it is necessary to study the processing methods of fiber optic disks, and all SCSI commands that fiber optic disks can handle must be processed.

[0043] When processing SCSI commands,...

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Abstract

Based on the optical fiber channel card HBA and SCSI magnetic disk, the storage control method controls the transmission of information on network and simulates the action of the optical fiber disk by using the simulation target module stored in the control host of the storage node at target end. The said simulation target comprises following modules: SCSI command processing, SCSI message processing, command / data receiving, command / data transmitting, SCSI command queue control, SCSI message queue control and storage disk queue module. The invention has the advantages of high flexibility, high cost performance ratio. Various structure modes built on Ethernet or optical fiber network can be created and the two sets of networks are possible to run at same time.

Description

technical field [0001] A method for replacing an optical disk in a storage area network with an ordinary 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 that faci...

Claims

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Application Information

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Patent Type & Authority Applications(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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