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Method for accessing remote logic equipment through multiple routes in Linux system

A logical device and multi-path technology, applied in the transmission system, data exchange through path configuration, electrical components, etc.

Inactive Publication Date: 2011-02-02
INVENTEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The purpose of the present invention is to propose a method for multi-path access remote logical devices under the Linux system, by finding out the online devices that access the same logical unit number in all online hosts, and grouping these online devices into one Unique image device, so that each image device is mapped to a different logical unit number, so as to solve the aforementioned problem of accessing the same data content

Method used

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  • Method for accessing remote logic equipment through multiple routes in Linux system
  • Method for accessing remote logic equipment through multiple routes in Linux system
  • Method for accessing remote logic equipment through multiple routes in Linux system

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Embodiment Construction

[0031] The purpose and proposal of the present invention are described in detail in the following preferred embodiments. However, the concept of the invention can also be used in other areas. The following examples are only used to illustrate the purpose and implementation method of the present invention, and are not intended to limit the scope thereof.

[0032] figure 1 It is a flowchart of a method for multi-path accessing a remote logical device under the Linux system in a preferred embodiment of the present invention. Please refer to figure 1 , in this embodiment, the method for multi-path accessing remote logical devices under the Linux system is used to implement multi-path access between the initiator and the target of a storage area network (Storage Area Network, SAN). First, the initiator establishes a communication connection with the target (step S110). Next, the initiator requests to establish at least one online session with the target (step S120). Afterwards...

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Abstract

The invention relates to a method for accessing a remote logical unit in a Linux system in a multipath manner. The method is used for realizing multipath access between an initiator and a target in a storage area network (SAN), and comprises the following steps: the initiator establishes on-line communication with the target and requests to establish at least one on-line session with the target; the initiator obtains internet small computer system interface (iSCSI) on-line host allocated by the target and acquires on-line equipment information corresponding to the iSCSI on-line host by returning a logical unit number (LUN) command; and the initiator which is equipped with an equipment mapping instrument generates redundant equipment information according to the on-line equipment and the corresponding LUN, and maps the redundant on-line equipment to be singular mapping equipment.

Description

technical field [0001] The invention relates to a method for accessing a remote logic device, and in particular to a method for multipath accessing a remote logic device under a Linux system. Background technique [0002] A storage area network (Storage Area Network, SAN) refers to a virtual large-scale storage device that connects multiple scattered storage devices on the Internet through the Internet Small Computer Systems Interface (iSCSI) communication protocol standard. . The user accesses the data on the remote logical disk through a storage area network (Storage Area Network, SAN), just like accessing the local hard disk device. Compared with the existing RAID technology, the storage area network established by using the iSCSI technology has both the high-speed transmission characteristics of the small computer system interface (Small Computer Interface, SCSI) and the high expandability superior to the existing storage devices. Therefore, the storage area network ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/28H04L29/06
Inventor 朱明胜王纪东陈玄同刘文涵
Owner INVENTEC CORP
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