A peripheral device according to the present invention includes: a memory; and a processor. The processor performs operations. The operations includes: detecting a failure related to the peripheral device and notifying a host device of occurrence of the failure; transmitting the failure information to the host device when failure information relating to the failure is requested by the host device after notifying of the occurrence of the failure, storing the failure information in the memory when there is no request for the failure information from the host device, and reading the failure information from the memory and transmitting the read failure information to the host device when the stored failure information is requested by the host device; and initializing the peripheral device after storing the failure information in the memory when initialization is instructed by the host device.