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Method for accessing storage device through internet small computer system interface (iSCSI) in multipath manner and storage device

A storage device and multi-path technology, applied to electrical components, transmission systems, etc., can solve problems such as limited transmission capacity

Active Publication Date: 2011-07-06
深圳市安云信息科技有限公司
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0005] If the iSCSI initiator adopts multiple input and output methods, multiple links may be connected to the same port of the storage device, resulting in limited transmission capacity

Method used

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  • Method for accessing storage device through internet small computer system interface (iSCSI) in multipath manner and storage device
  • Method for accessing storage device through internet small computer system interface (iSCSI) in multipath manner and storage device
  • Method for accessing storage device through internet small computer system interface (iSCSI) in multipath manner and storage device

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Embodiment Construction

[0032] In order to make the purpose and technical solution of the present invention clearer, the present invention will be described in detail below through specific examples.

[0033] figure 1 The process of accessing storage devices through iSCSI proposed by the embodiment of the present invention is shown, including the following steps:

[0034] Step 101: Set a virtual group port on the storage device, and the virtual group port has a unique fixed address and a listening port number.

[0035] Step 102: Any actual port or virtual group port of the storage device receives the first login request from the iSCSI initiator, and returns the name of the storage device and the address and listening port number of the virtual group port to the iSCSI initiator; The first login request is a discovery (discovery) type login request.

[0036] Step 103: The storage device receives a second login request from the iSCSI initiator that includes the address of the virtual group port and th...

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Abstract

The invention provides a method for accessing a storage device through an internet small computer system interface (iSCSI) in a multipath manner. A virtual group port is arranged in the storage device. When an iSCSI initiator initiates interlinking to the storage device according to the virtual group port, the interlinking is redirected to a certain usable actual port according to a setting policy. When the actual port is selected, the situation that the iSCSI initiator possibly uses MPIO (Multipath Input / Output) software is considered, a host identity carried by the login request is compared with a host identity corresponding to a port of the existing link to judge whether the port has the link from the host or not, so that links from the same host are distributed to different ports.

Description

technical field [0001] The invention relates to the technical field of computer storage, in particular to a method for accessing a storage device through an iSCSI multipath and a storage device. Background technique [0002] Small Computer System Interface (SCSI, Small Computer System Interface) is an independent processor standard for system-level interfaces between computers and smart devices (hard disks, floppy drives, optical drives, printers, scanners, etc.). SCSI is an interface standard between various computers and external devices. It has the characteristics of supporting multiple peripherals, multitasking, and supporting synchronous or asynchronous data transmission. [0003] Internet Small Computer System Interface (iSCSI) technology is a SCSI instruction set that can be used by hardware devices and can run on the upper layer of the IP protocol. Routing over Gigabit Ethernet. The iSCSI technology combines the existing SCSI interface with the Ethernet (Ethernet) ...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L29/08H04L29/12
Inventor 雷伟
Owner 深圳市安云信息科技有限公司
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