Method, device and system for sending data packet and exchanging equipment

Abstract

The embodiment of the invention discloses a method, a device and a system for sending a data packet, and exchanging equipment. The method comprises the following steps: the exchanging equipment receives an I/O data packet sent by upstream equipment of fault equipment when any one of at least two data links has a fault; a sending interface corresponding to an interface receiving the I/O data packet is confirmed according to the corresponding relationship between the preset interface receiving the I/O data packet and the sending interface; the I/O data packet is issued to the equipment corresponding to the fault equipment in the other data link through the sending terminal, and the other data link is the other one in the two data links except the data link in which the fault equipment is arranged. The embodiment of the invention realizes that the integrality of the entire I/O flow is maintained and the reliability of a double-control system or a multi-control system can be improved when modules and exchanging equipment which realize the same function in all controller or all JBODs do not simultaneously have faults.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a data packet sending method, device, system and switching equipment. Background technique [0002] With the development of communication technology, the system has higher and higher requirements for storage reliability. At present, most of them use dual-control system or even multi-control system to ensure storage reliability. Among them, a dual-control system refers to using two controllers to drive a hard disk subsystem; a multi-control system refers to using multiple controllers, such as three or more controllers, to drive a hard disk subsystem. In a dual-control system or a multi-control system, when one controller fails, the other controller immediately takes over the work of the failed controller to control the operation of the hard disk. [0003] The existing dual-control system includes two controllers and two disk clusters (Just Bundle of Disks; hereinaft...

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Problems solved by technology

[0004] In the process of realizing the present invention, the inventor has found that the prior art has at least the following problems: the dual-control system or multi-control system provided by the prior art can maintain the entire input (Input) when at least one controller and at least one JBOD do not fail ; Hereinafter referred to as: I) / output (Output; hereinafter referred to as: O) the integrity of the process

However, if all controllers or all JBODs of the dual-control system or multi-control system fail, the existing dual-control system or multi-control system cannot maintain the integrity of the entire I / O process, and the reliability is low

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