Data access method, switch and storage medium

A switch, comprising a memory, a processing unit and a computer program stored on the memory and executable on the processing unit, wherein the processing unit, when executing the computer program, is configured to perform a data access method, being applied to the switch, wherein the switch comprises a central processing unit, a baseboard management controller, a main controller and at least one device, the central processing unit and the baseboard management controller being each connected to the main controller, and the main controller being connected to the at least one device;

• the data access method comprises:
• controlling, by the baseboard management controller, an interface state corresponding to a general-purpose input or output interface;
• receiving, by the main controller, the interface state corresponding to the general-purpose input or output interface output by the baseboard management controller;
• determining, by the main controller, whether the interface state is a high-level state or a low-level state;
• allowing, by the main controller, the baseboard management controller to access the at least one device in response to the main controller determining that the interface state is the high-level state;
• and
• allowing, by the main controller, the central processing unit to access the at least one device in response to the main controller determining that the interface state is the low-level state;
• wherein the allowing, by the main controller, the central processing unit to access the at least one device comprises:
• sending, by the central processing unit, a control instruction to the main controller;
• selecting, by the main controller, a target control mode according to the control instruction;
• and
• allowing, by the main controller, the central processing unit to access the at least one device according to the target control mode.

A non-transitory computer-readable storage medium having stored therein a computer program, the computer program, when executed by a processing unit, is configured to perform a data access method, being applied to a switch, wherein the switch comprises a central processing unit, a baseboard management controller, a main controller and at least one device, the central processing unit and the baseboard management controller being each connected to the main controller, and the main controller being connected to the at least one device;

• the data access method comprises:
• controlling, by the baseboard management controller, an interface state corresponding to a general-purpose input or output interface;
• receiving, by the main controller, the interface state corresponding to the general-purpose input or output interface output by the baseboard management controller;
• determining, by the main controller, whether the interface state is a high-level state or a low-level state;
• allowing, by the main controller, the baseboard management controller to access the at least one device in response to the main controller determining that the interface state is the high-level state;
• and
• allowing, by the main controller, the central processing unit to access the at least one device in response to the main controller determining that the interface state is the low-level state;
• wherein the allowing, by the main controller, the central processing unit to access the at least one device comprises:
• sending, by the central processing unit, a control instruction to the main controller;
• selecting, by the main controller, a target control mode according to the control instruction;
• and
• allowing, by the main controller, the central processing unit to access the at least one device according to the target control mode.