Storage device sharing method and apparatus, and system

A storage device sharing method, applied to a multi-integrated-module system, wherein the multi-integrated-module system comprises a plurality of integrated modules, a management unit, and a storage device, the plurality of integrated modules are separately connected to the management unit, the management unit is connected to the storage device, and the method comprises:

• receiving, by the management unit, one or more read/write requests that are for a plurality of pieces of target data and sent by the plurality of integrated modules, and determining a plurality of target addresses corresponding to the plurality of pieces of target data, wherein the plurality of integrated modules are in one-to-one correspondence with the read/write requests for the plurality of pieces of target data, and the plurality of pieces of target data are in one-to-one correspondence with the plurality of target addresses;
• determining, by the management unit, a plurality of physical addresses in the storage device based on the plurality of target addresses, wherein the plurality of target addresses are in one-to-one correspondence with the plurality of physical addresses;
• and
• reading or writing, by the management unit, the plurality of pieces of target data in the storage device based on the plurality of physical addresses.