Abstract: A management system including plural managed devices, a management device that manages each of the plural managed devices, and a storage device that is provided separately from the plural managed devices and the management device, and is commonly employed by the plural managed devices and the management device. The plural managed devices each respectively write status data, indicating a status of the respective managed device, to the storage device at a specific timing. The management device manages the status of each of the managed devices by verifying the status data written to the storage device at a timing according to the specific timings.