A data transmission method, related device and data transmission system

Abstract

The embodiment of the present invention discloses a data transmission method, which includes: acquiring hardware configuration information of all HBA cards in the system; analyzing the hardware performance reference information of each HBA card according to the hardware configuration information; according to the hardware performance reference information of each HBA card, Call the preset path selection algorithm, and select the path corresponding to the HBA card in the system for data transmission. Correspondingly, the present invention also discloses a data transmission device, network equipment and data transmission system. By adopting the present invention, by acquiring the hardware configuration information of all HBA cards, analyzing the hardware performance reference information of each HBA card, select a high-performance one. The I / O distributed by the path solves the problem that the existing technology fails to fully consider the HBA card hardware differences of each path in the actual use environment, resulting in low I / O processing efficiency and low hardware utilization, and can effectively to prevent I / O congestion from occurring.

Description

technical field [0001] The present invention relates to the communication field, in particular to a data transmission method, a related device and a data transmission system. Background technique [0002] In order to improve the reliability of data transmission and avoid a single point of failure, multiple links (called paths) are often used between application servers and storage systems for data transmission. The multi-path software is responsible for managing multiple paths, and selects the optimal path to send input / output (Input / Output, I / O) to ensure business performance, and is responsible for switching I / O to the backup path when the path fails: [0003] In the current routing algorithm, such as figure 1 , some consider only the path in the preferred controller when selecting paths, and send all I / Os to that single path (i.e. figure 1 Path 2 in ), in this algorithm, if a certain path fails, then choose an alternate path to send all the I / O; as figure 2 , and othe...

AI Technical Summary

Problems solved by technology

[0004] However, the above path selection method does not fully consider the differences in the host bus adapter (HBA) card hardware of each path in the actual use environment, and there is a possibility that the selected path is not delivered on the optimal path of the high-performance HBA card, or The performance advantages of high-performance HBA cards cannot be reasonably utilized, resulting in low I / O processing efficiency and low hardware utilization

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