The availability status gives more detailed information about failures within a device. An empty status set means that no error exists. Possible status are: in test The device is under test. failed The device has an internal fault that prevents it from operating. power off The device requires power to be applied and is not powered on. off line The device requires a routine operation to be performed to place it online and make it available for use. off duty The device has been made inactive by an internal control process in accordance with a predetermined time schedule. dependency The device can not operate because some other resource on which it depends is unavailable. degraded The device is partially defective but still operable. not installed The device is not present, or incomplete. log full The log is full.