Abstract: Accordingly, there has been described a computer system with a plurality of memory components where individual bits from multiple words are distributed among the memory components. An error analyzer is operable to identify a memory component as potentially faulty by accessing a table mapping syndromes to memory components using generated syndromes.

Abstract: A system controller module is operable to monitor system operation in a system that can include a further such system controller module. The system controller module can include system controller storage and can be operable to maintain system parameters therein. At least a predetermined part of the system controller storage can include a plurality of domains. A check code (e.g., a pseudo CRC) can be generated for each domain such that equivalence between check codes for a domain in the system controller storage and a corresponding domain in further storage of a further system controller module is indicative of the domains concerned being in synchronism.

Abstract: A computer system includes a plurality of field replaceable units. A system controller monitors system errors. A diagnostic engine is responsive to the system controller detecting an error to identify a faulty field replaceable unit. A reconfiguration engine can then be operable to deconfigure the faulty field replaceable unit. By providing a diagnostic engine to identify a faulty field replaceable unit to be deconfigured, greater reliability with regard to the identification of a faulty unit can be achieved.

Abstract: A system controller module is operable to monitor system operation in a system that can include a further such system controller module. The system controller module can include system controller storage and can be operable to maintain system parameters therein. At least a predetermined part of the system controller storage can include a plurality of domains. A check code (e.g., a pseudo CRC) can be generated for each domain such that equivalence between check codes for a domain in the system controller storage and a corresponding domain in further storage of a further system controller module is indicative of the domains concerned being in synchronism.

Abstract: An error diagnosis engine is provided for a computer system that includes a plurality of field replaceable units and fault storage for recording fault information including information identifying first errors. The computer system further includes storage for a fault table relating errors to field replaceable units and for hardware configuration information identifying the interconnection of field replaceable units. The diagnosis engine is operable to search the fault storage to determine a first error and to interact with the fault table and the hardware configuration information to determine a source of the first error. Providing an error diagnosis engine to determine a source of the first error can enable greater reliability with regard to the identification of a faulty unit.

Abstract: A computer system includes a plurality of field replaceable units. A system controller monitors system errors. A diagnostic engine is responsive to the system controller detecting an error to identify a faulty field replaceable unit. A reconfiguration engine can then be operable to deconfigure the faulty field replaceable unit. By providing a diagnostic engine to identify a faulty field replaceable unit to be deconfigured, greater reliability with regard to the identification of a faulty unit can be achieved.