A first non-volatile memory stores a redundant copy of system data that relates to a configuration of at least one physical component of a system, where the first non-volatile memory is accessible by a controller in the system and inaccessible to a processor in the system. It is determined whether system data in a second non-volatile memory accessible by the processor is compromised. In response to determining that the system data in the second non-volatile memory is compromised, the compromised system data in the second non-volatile memory is repaired.