Configuration and request processing method, device and equipment based on input and output virtualization

The invention discloses a configuration and request processing method, device and equipment based on IO virtualization, and belongs to the field of computers. The method is applied to the computing equipment, and the computing equipment comprises a host machine running on a hardware layer of the computing equipment, a front end running in a user mode of the host machine and at least two rear ends corresponding to the front end. The method comprises the steps that configuration information is obtained, the configuration information is used for creating a virtual queue between a front end and at least two rear ends, the virtual queue is used for storing IO requests sent by the front end, the at least two rear ends comprise the first rear end and the second rear end, the first rear end is a main rear end used for processing the IO requests sent by the front end, and the second rear end is a main rear end used for processing the IO requests sent by the front end; the second rear end is a slave rear end in a prepa