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Method and system for achieving SAN network data equalized transmission

A technology for network data and data transmission, applied in the field of array storage, it can solve problems such as loss of access to Lun, failure of host HBA card to access storage normally, bottleneck of SAN transmission link, etc., to achieve link multiplexing, reduce maintenance time and failures throughput, avoid system unusable effects

Inactive Publication Date: 2014-05-14
CHINA MOBILE GROUP SICHUAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Under normal circumstances, the data accessed by the same Lun is only transmitted through the link of the controller connected to the Lun, and the link corresponding to the standby controller is in the standby state. This working mode has the following disadvantages: First, half of the links in the SAN network Second, when the host HBA card fails, the storage cannot be accessed normally; third, there may be a bottleneck in the SAN transmission link; fourth, when a link failure occurs, the corresponding Lun will lose access

Method used

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  • Method and system for achieving SAN network data equalized transmission
  • Method and system for achieving SAN network data equalized transmission
  • Method and system for achieving SAN network data equalized transmission

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Embodiment 1

[0032] Such as figure 2 As shown, this embodiment proposes a method for realizing the balanced transmission of SAN network data, including the following steps:

[0033] Step 101, the A / P type storage Lun is mapped to array controller A and array controller B respectively through the A / P array;

[0034] Step 102, the array controller A is connected to the first HBA card of the host through the first switch, and the array controller B is connected to the second HBA card of the host through the second switch;

[0035] Step 103, connecting the first switch and the second switch;

[0036] Step 104, the host encapsulates the transmission link through multi-path software;

[0037] Step 105, the SAN network performs balanced data transmission through the first switch and the second switch.

[0038] This embodiment relies on the original SAN network architecture, adjusts on the original basis, connects two SAN switches, and uses the o1-o2-o3-o4 link and the o1-o2-o6-o5 link when no f...

Embodiment 2

[0044] Such as image 3 As shown, in this embodiment, in order to ensure the interconnection and data forwarding between the two switches, the two switches are further configured, including the following steps:

[0045] Step 201, the A / P type storage Lun is mapped to array controller A and array controller B respectively through the A / P array;

[0046] Step 202, the array controller A is connected to the first HBA card of the host through the first switch, and the array controller B is connected to the second HBA card of the host through the second switch;

[0047] Step 203, cascading the first switch and the second switch through no less than one optical fiber cable; dividing the first switch and the second switch into the same virtualization domain;

[0048] Two switches are divided into the same virtualization domain (Domain), and the domain is marked as the virtual position of the switch. Only switches in the same domain can realize interconnection and data forwarding. T...

Embodiment 3

[0053] For the method embodiment, the present invention also proposes a corresponding system embodiment, such as Figure 4 As shown, it includes A / P-type storage Lun, array controller A, array controller B, the first switch, the second switch, the first HBA card of the host, the second HBA card of the host, and the host. Among them, the A / P-type storage Luns are respectively mapped to array controller A and array controller B through the A / P array; array controller A is connected to the first HBA card of the host through the first switch, and array controller B is connected to the second HBA card of the host through the second switch The first switch and the second switch are connected to each other; the host encapsulates the transmission link through multi-path software; the SAN network performs balanced data transmission through the first switch and the second switch.

[0054] Preferably, the first switch and the second switch are cascaded through no less than one optical fi...

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Abstract

The invention discloses a method for achieving SAN network data equalized transmission. The method comprises following steps that an A / P type storage Lun is mapped to an array controller A and an array controller B by an A / P array; that the array controller A is connected with a first host HBA card through a first switch; that the array controller B is connected with a second host HBA card through a second switch; that the first switch is connected with the second switch; that a host packages a transmission link with multipath software; that a SAN network performs data equalized transmission with the second switch by using the first switch. The method may sharply decrease faults in each link, reduce single point failure domain, achieve link multiplexing in order that a link originally in a Standby mode is switched to an active mode, bear service data transmission, and increase data throughout. The invention also discloses a system for implementing the method.

Description

technical field [0001] The invention relates to the technical field of array storage, in particular to a method and system for realizing balanced transmission of SAN network data. Background technique [0002] The healthy development of contemporary enterprises is closely related to the degree of their digital information technology construction. The core data of enterprises exist in the form of electronic data, gradually replacing the form of storing core data with paper as the medium. The use of storage enables centralized storage and security management of core data. The storage uses RAID technology for virtualized data protection. On the basis of the RAID disk array (Redundant Arrays of Inexpensive Disks) group, it continues to be virtualized into a logical unit number of a custom size, that is, Logical Unit Number (Lun). The host implements data storage through Lun and access. [0003] The storage has implemented RAID on the disk at the bottom layer, which is divided ...

Claims

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Application Information

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IPC IPC(8): H04L29/08H04L12/803H04L12/24
Inventor 曾键陈刚刘三苏郑水华周晓伟杨孝平
Owner CHINA MOBILE GROUP SICHUAN
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