Intel Corporation
LIFETIME TELEMETRY ON MEMORY ERROR STATISTICS TO IMPROVE MEMORY FAILURE ANALYSIS AND PREVENTION

Abstract:

Methods and apparatus for lifetime telemetry on memory error statistics to improve memory failure analysis and prevention. Memory error information corresponding to detected correctable errors and uncorrectable memory errors are monitored, with the memory error information identifying an associated DRAM device in an associated DIMM. Corresponding micro-level error bits information from the memory error information is decoded and Micro-level Error Statistic Indicators (MESIs) are generated. Information associated with the MESIs from DRAM devices on the DIMMs are periodically written to persistent storage on those DIMMs. The MESIs for a given DIMM are updated over the lifetime of the DIMM.