Enhanced storage of metadata utilizing improved error detection and correction in computer memory

摘要

A novel ECC scheme is disclosed that offers an error protection level that is at least the same as (if not better than) that of the conventional ECC scheme without negatively impacting latency and design complexity. Embodiments of the present disclosure utilize an ECC scheme which leaves up to extra 2B for metadata storage by changing the error detection and correction process flow. The scheme adopts an early error detection mechanism, and tailors the need for subsequent error correction based on the results of the early detection.

主权项

1. A method, comprising:
reading a first set of data from a block of data in a cache line at a first boundary within the block of data, wherein the first boundary is an intermediate boundary; inspecting the first set of data for errors; generating a record including inspection results for the first set of data; reading a second set of data from the block of data in the cache line at a second boundary within the block of data; inspecting the second set of data for errors; and updating the record by adding inspection results for the second set of data.