Storage system boot method and apparatus, and computer-readable storage medium

A storage system boot apparatus, comprising:

• at least one processor;
• and
• a memory storing a computer program configured to run in the at least one processor, wherein the at least one processor executes the computer program to:
• determine, based on a hardware connection method on a motherboard, a bus number, a device number, and a function number of a bridge device for connecting a Peripheral Component Interconnect Express (PCIe) device with a Central Processing Unit (CPU), so as to position a configuration space of the bridge device;
• during boot of a Basic Input Output System (BIOS), after completion of initialization of the PCIe device is detected, determine, according to connection information of a preset hardware device read from the configuration space, whether the preset hardware device is successfully connected, wherein the preset hardware device is a hardware device associated with a storage system on the motherboard;
• in response to a determination that the preset hardware device is successfully connected, continue booting the BIOS until the boot of the BIOS is finished;
• in response to a determination that the preset hardware device fails to be connected, send, by the CPU, a reconnection instruction to stabilize a speed of a PCIe hardware link in a matched state by means of adjusting a parameter of a sending end and a parameter of a receiving end;
• in response to a detection that a number of times that the CPU sends the reconnection instruction is greater than a first preset value and a detection that the preset hardware device fails to be connected, send, by the BIOS, a system reboot instruction;
• and
• in response to a detection that the number of times that the CPU sends the reconnection instruction is not greater than the first preset value, continue to determine whether the preset hardware device is successfully connected after waiting for a preset duration.

A non-transitory computer-readable storage medium, storing a storage system boot program that is executed by a processor wherein upon execution by the processor, the storage system boot program is configured to cause the processor to:

• determine, based on a hardware connection method on a motherboard, a bus number, a device number, and a function number of a bridge device for connecting a Peripheral Component Interconnect Express (PCIe) device with a Central Processing Unit (CPU), so as to position a configuration space of the bridge device;
• during boot of a Basic Input Output System (BIOS), after completion of initialization of the PCIe device is detected, determine, according to connection information of a preset hardware device read from the configuration space, whether the preset hardware device is successfully connected, wherein the preset hardware device is a hardware device associated with a storage system on the motherboard;
• in response to a determination that the preset hardware device is successfully connected, continue booting the BIOS until the boot of the BIOS is finished;
• in response to a determination that the preset hardware device fails to be connected, send, by the CPU, a reconnection instruction to stabilize a speed of a PCIe hardware link in a matched state by means of adjusting a parameter of a sending end and a parameter of a receiving end;
• in response to a detection that a number of times that the CPU sends the reconnection instruction is greater than a first preset value and a detection that the preset hardware device fails to be connected, send, by the BIOS, a system reboot instruction;
• and
• in response to a detection that the number of times that the CPU sends the reconnection instruction is not greater than the first preset value, continue to determine whether the preset hardware device is successfully connected after waiting for a preset duration.