HDSTR tester has no CM and temperature control. Just plug and turn on the power supply to the drives. These drives will be spun up themselves to run the command that is recorded at CAL2 operation. And HDSTR tester need the set up time to purge. When the end of time, the drive will be unloaded the result to continue test the normal flow of FNC operation. HDSTR tester will be get only some state to run.