Simple definition
ECC memory detects and corrects certain memory bit errors to improve system reliability.
Purpose and use
ECC, Error-Correcting Code, memory adds information for detecting and correcting selected memory errors under the supported scheme.
How does it work?
Modules and controller work together; exact correction capability depends on architecture.
Example and verification
Monitor corrected and uncorrectable errors through server management tools to identify degradation.
Points to watch
ECC does not correct every possible error or replace backups and hardware-stability checks.
In short
ECC protection needs compatible hardware, active operation and monitoring.