Embodiments include a method of a test system that comprises a host device and at least one storage device having multiple ports connected to the host device through a multi-port connection, the method comprising: issuing, by a test program at the host device, a first command; generating, by a device driver at the host device, a plurality of second commands in response to the first command; and simultaneously transferring, by the host device, the second commands to each of the at least one storage device.