A node interconnection apparatus, comprising: a resource control node and a computing node, wherein: the computing node and the resource control node are connected by using a device interconnection interface; the resource control node is provided with a resource interface, and the resource control node is configured to access a storage device by using the resource interface, allocate a storage resource that belongs to the computing node, receive an access request sent by the computing node for the allocated storage resource, and perform a storage operation on the allocated storage resource by using the resource interface; and the node interconnection apparatus further comprises: a primary power device, wherein: the primary power device directly supplies power to the resource control node, and the primary power device supplies power to the computing node by using a power switch; and before a power-on operation is performed on the resource control node, the power switch opens a power supply circuit between the primary power device and the computing node; wherein the resource control node is further configured to: after the power-on operation is performed on the resource control node, control the power switch to close the power supply circuit between the primary power device and the computing node, so that a power-on operation is performed on the computing node. a resource control node and a computing node, wherein: the computing node and the resource control node are connected by using a device interconnection interface; the resource control node is provided with a resource interface, and the resource control node is configured to access a storage device by using the resource interface, allocate a storage resource that belongs to the computing node, receive an access request sent by the computing node for the allocated storage resource, and perform a storage operation on the allocated storage resource by using the resource interface; and the node interconnection apparatus further comprises: a primary power device, wherein: the primary power device directly supplies power to the resource control node, and the primary power device supplies power to the computing node by using a power switch; and before a power-on operation is performed on the resource control node, the power switch opens a power supply circuit between the primary power device and the computing node; wherein the resource control node is further configured to: after the power-on operation is performed on the resource control node, control the power switch to close the power supply circuit between the primary power device and the computing node, so that a power-on operation is performed on the computing node. a primary power device, wherein: the primary power device directly supplies power to the resource control node, and the primary power device supplies power to the computing node by using a power switch; and before a power-on operation is performed on the resource control node, the power switch opens a power supply circuit between the primary power device and the computing node; wherein the resource control node is further configured to: after the power-on operation is performed on the resource control node, control the power switch to close the power supply circuit between the primary power device and the computing node, so that a power-on operation is performed on the computing node. the primary power device directly supplies power to the resource control node, and the primary power device supplies power to the computing node by using a power switch; and before a power-on operation is performed on the resource control node, the power switch opens a power supply circuit between the primary power device and the computing node; wherein the resource control node is further configured to: after the power-on operation is performed on the resource control node, control the power switch to close the power supply circuit between the primary power device and the computing node, so that a power-on operation is performed on the computing node.