Hot plugging method and system for PCIE card

Abstract

The invention discloses a hot plugging method and system for a PCIE card. The method comprises the steps that after a PCIE adapter plate is inserted into a host, a trigger signal is generated after a trigger button is pressed, the PCIE adapter plate sends the trigger signal to a signal processing device, the signal processing device judges whether the trigger signal is an insertion signal or a pull-out signal according to the state of a current PCIE card, the signal processing device sends a corresponding interrupt signal to the host according to the judged result, the host returns corresponding interrupt acknowledge to the signal processing device, the signal processing device sends a corresponding power supply enable signal to a hot plugging chip according to the corresponding interrupt acknowledge, and the hot plugging chip energizes or deenergizes the PCIE card according to the corresponding power supply enable signal. By means of the method and system, the PCIE card can be inserted into or pulled out of the host on the condition that the host is not powered off, normal operation of the host is not affected, and then the convenience, high efficiency and stability of the whole host are improved.

Description

technical field [0001] The invention relates to the technical field of computer expansion, in particular to a method and system for hot plugging and unplugging a PCIE card. Background technique [0002] In today's electronic products, the requirements for speed are getting higher and higher, and the PCIE (Peripheral Component Interconnect Express, external component interconnection standard) bus has been widely used in many fields as a high-speed bus, such as storage, server, PC and other fields. Various PCIE cards based on the PCIE protocol are used in storage devices, and these PCIE cards are used as front-end cards or back-end cards to connect servers and hard disks. [0003] The current PCIE card is integrated into the motherboard as an expansion card, or connected to the motherboard in the form of a plug-in card, but this PCIE card in the form of a plug-in card does not currently support the hot-swappable function. The hot-swappable function is to allow users to Take o...

AI Technical Summary

Problems solved by technology

[0003] The current PCIE card is integrated into the motherboard as an expansion card, or connected to the motherboard in the form of a plug-in card, but this PCIE card in the form of a plug-in card does not currently support the hot-swappable function. The hot-swappable function is to allow users to Take out and replace hard drives, power supplies, expansion cards and other components without shutting down the system or cutting off the power supply

If a PCIE card without hot-swap function is inserted into a storage device that is not powered off, the PCIE card will be damaged, so the only way to replace the PCIE card is to power off the entire storage device. This method is very inconvenient and affects efficiency.

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