An electronic maintenance record file system for facilities including local monitoring units, installed near the equipment to be maintained, a calculator made available to the maintenance company and connected to the local units using a transmission network to receive and process the information transmitted by the local units. Each local unit includes identification resources of the technician in charge of maintaining the associated equipment; time stamping resources of the start and end of each operation performed by the technician; data input resources of the description of the work performed during the technician's operation; and storage resources for storing, in the form of an electronic maintenance report file, the description of each operation performed on the associated equipment in relation with the identification information of the technician that performed the operation and the time stamp information of the start and end of the operation.
An apparatus containing a maintenance interface unit is described. In one exemplary implementation, the apparatus includes a multiprocessor system and the maintenance interface unit. The multiprocessor system uses cache coherency for accessing memory. The maintenance interface unit is integrated within the multiprocessor system and is configured to provide a backdoor accessibility to the multiprocessor system on-behalf of a peripheral maintenance system. The maintenance interface unit is also configured to perform operations within the multiprocessor system while maintaining the cache coherency.
