A method for dispatching input-output in a system. The system may include a centralized processing circuit, a plurality of persistent storage targets, a first input-output processor, and a second input-output processor. The method may include determining whether the first input-output processor is connected to a first target of the plurality of persistent storage targets; determining whether the second input-output processor is connected to the first target; and in response to determining that both the first input-output processor is connected to the first target, and the second input-output processor is connected to the first target, dispatching a first plurality of input-output requests, each to either the first input-output processor or the second input-output processor, the dispatching being in proportion to a service rate of the first input-output processor to the first target and a service rate of the second input-output processor to the first target, respectively.