FIRMWARE-BASED SSD BLOCK FAILURE PREDICTION AND AVOIDANCE SCHEME

摘要

Solid state drives (SSDs) have been introduced. The SSD may include flash storage for data, and the flash storage is composed of a plurality of blocks. The controller can manage reading data from and writing data to flash storage. The metadata storage may store device-based log data for errors of the SSD. The identification firmware can identify the block in response to the device-based log data. In some embodiments of the present invention, the verification firmware may determine whether the suspect block is predicted to fail in response to both accurate block-based data and device-based log data.