A configuration method and system for hot-adding central processing unit cpu

Abstract

Embodiments of the invention disclose a hotly added CPU (Central Processing Unit) configuration method and system. The method comprises the steps that a main CPU determines an in-place CPU adjacent to a first hotly added CPU; the in-place CPU establishes a first QPI (Quick Path Interconnect) link with the first hotly added CPU, and establishes a second QPI link between the first hotly added CPU and an NC (Node Controller), wherein the NC is an NC connected with the in-place CPU; and the in-place CPU configures route register information of the first hotly added CPU. By implementing the method and the system, the configuration of the hotly added CPU can be realized through the in-place CPU adjacent to the hotly added CPU and does not depend on a distance between the hotly added CPU and the main CPU, so that topological extension is facilitated; and the transfer by the NC and / or other CPUs is no longer needed, so that the topological discovery efficiency is improved, businesses can be quickly recovered, and the usage experience of a user is improved.

Description

technical field [0001] The invention relates to the technical field of computers, in particular to a configuration method and system for hot-adding a central processing unit CPU. Background technique [0002] At present, in order to improve the fault-tolerant capability of the server, the central processing unit (CPU, Central Processing Unit) hot swap has become an indispensable feature of many servers, that is: in the server system, since the server is composed of multiple CPUs, when the When one or more CPUs fail and need to be removed, the CPU hot-swappable feature can ensure uninterrupted business, thus not affecting the business operation of the entire server system. In the process of CPU hot-swapping, the failed CPU is removed, and a new CPU (also known as "hot-add CPU") needs to be reconfigured and added to the server system, which causes the topology of the server system to change. Therefore, The topology discovery of the server system is the basis and key to the re...

AI Technical Summary

Problems solved by technology

The current hot-add CPU topology discovery solution is implemented by the main CPU. The farther the hot-add CPU is from the main CPU, the more complicated the implementation of the solution is, which is not conducive to the topology expansion of the server system, and depends on NC and / or configured The transfer of CPU increases the topology discovery time of hot-add CPU

It can be seen that the current hot-add CPU topology discovery scheme has problems of low efficiency and unfavorable topology expansion.

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