Hot plug method, hot plug control device and hot plug card system

Abstract

Embodiments of the invention disclose a hot plug method, a hot plug control device and a hot plug card system. The method comprises the steps of: receiving a card removing signal sent by a hot plug card, wherein the hot plug card includes at least two Peripheral Component Interface Express (PCIE) terminal devices; generating a card removing request corresponding to the PCIE terminal devices according to the card removing signal; sending the card removing request corresponding to the PCIE terminal devices to a PCIE exchanger of a main control board, and processing a non-electrifying operation to the PCIE terminal devices by the PCIE exchanger; sending a power-off instruction to the hot plug card so as to switch off the power source of the hot plug card. The technical scheme of the embodiments realizes the safe hot plug operation to the PCIE terminal devices of the hot plug card, efficiently improves the number and the density of the PCIE terminal devices in the hot plug card to enable the hot plug card to be provided with a plurality of interfaces, thereby efficiently improving the number of the interfaces of the hot plug card.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a hot-swapping method, a hot-swapping control device and a hot-swapping card system. Background technique [0002] PCI Express (PCI Express, hereinafter referred to as: PCIE) bus is a new generation bus connecting the main control board and external devices of the computer system. Many high-availability computer systems usually use the PCIE bus. In order to ensure the reliability of the computer system using the PCIE bus, a set of methods that can quickly repair the external devices connected to the main control board through the PCIE bus in the computer system is needed, and the hot-swapping technology is the solution that can quickly repair the external devices. plan. [0003] The external device is usually hot-swappable to the main control board through a host bus adapter (Host Bus Adapter, hereinafter referred to as: HBA) card, and the hot-swapping of the HBA card inc...

AI Technical Summary

Problems solved by technology

During the hot-swapping process, because the PCIE switch does not power on and off the other PCIE endpoint devices in the HBA card, the hot-swap operation on other PCIE endpoint devices in the HBA card is an unsafe operation, which will cause computer system crash

Therefore, the hot-swapping method in the prior art causes only one PCIE endpoint device to be set in an HBA card, that is, only one interface can be set, thereby failing to meet the requirement of increasing the number of HBA card interfaces.

Images