a host device including a processor and a baseboard management controller (BMC); and

a plurality of storage devices, each including a storage controller and a micro controller unit (MCU),

wherein the processor and the storage controller are configured to support an in-band communication, and the BMC and the MCU are configured to support an out-of-band communication,

wherein the BMC is configured to receive monitoring data from the MCU of each of the plurality of storage devices based on the out-of-band communication,

wherein the processor is further configured to allocate a first workload among one or more workloads to a first storage device among the plurality of storage devices, based on a monitoring data set including the monitoring data, and

wherein the first storage device is configured to execute the first workload based on the in-band communication.