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Communication method and system between double controls

A communication method and host technology, applied in the communication method and system field between dual controllers, can solve the problems of large resources, complex communication protocol packets and headers, etc., and achieve the effect of simple environment, fewer hosts, and guaranteed security

Active Publication Date: 2015-04-01
INSPUR BEIJING ELECTRONICS INFORMATION IND
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Problems solved by technology

The TCP / IP protocol is suitable for long-distance transmission and supports a large number of hosts, but the communication protocol packets and headers are relatively complex, and the processing needs to occupy more resources of the central processing unit (CPU, Central Processing Unit). Therefore, the traditional The communication between dual controllers is suitable for a more complex and multi-host communication environment, but for the communication environment between dual controllers with a simple environment, short transmission distance, and a small number of hosts, it is not suitable to use the TCP / IP protocol.

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  • Communication method and system between double controls
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Embodiment Construction

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings. These implementation examples are described in sufficient detail to enable those skilled in the art to practice the invention. Logical, implementation and other changes may be made in the implementation without departing from the spirit and scope of the invention.

[0022] Peripheral Component Interconnect Express (PCI Express, Peripheral Component Interconnect Express) non-transparent bridge (NTB, Non-Transparent Bridge) technology is a new interconnection standard, which is suitable for high-performance chip-to-chip, board-to-board, Interconnect between backplane and chassis. PCI Express is based on hierarchical, high-speed serial communication technology, and its protocol stack can be divided into physical layer, data link layer and transmission layer. The physical layer includes high-speed serial interfaces for low-voltage differential signaling, 8B / 10B e...

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Abstract

The invention provides a communication method between double controls. The method comprises carrying out address translation between a first host and a second host based on PCI Express NTB, the NTB comprising a doorbell register; and sending interrupt between the first host and the second host through the doorbell register to realize communication between the first host and the second host. The communication method and system are suitable to be used between the first host of a local system and the second host of a far-end system, can simplify protocols, and can guarantee safety and reliability of data.

Description

technical field [0001] The invention relates to the technical field of storage systems, in particular to a communication method and system between dual controllers. Background technique [0002] At present, the dual-controller disk array has become the basic unit for building a large-scale storage system. The communication between the dual-controllers is the core component of the disk array, and its performance directly determines the performance of the disk array. Therefore, designing and implementing a dual-controller communication method with high reliability and high availability has become a hot research issue in storage systems. For modern enterprises, it is essential to use computer systems to provide timely and reliable information and services. On the other hand, computer hardware and software will inevitably fail, and these failures may cause great harm to enterprises. Loss, even the service or process being used will be terminated, seriously causing the paralysis...

Claims

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Application Information

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IPC IPC(8): H04L29/08H04L29/12
CPCG06F13/385G06F2213/0024
Inventor 刘变红闫永刚吴庆民
Owner INSPUR BEIJING ELECTRONICS INFORMATION IND
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