The tool will generate a log file. A verified tool includes CRC checks of all read operations. Save this log as proof of successful, non-damaging repair.
Each sector read is verified against checksums (if available) or redundant file system structures. Corrupt blocks are skipped gracefully rather than crashing the repair.
The best tools never write to a failing JBOD. They create a virtual reconstruction of the concatenated volume and allow you to extract data to a separate healthy drive.
The tool will generate a log file. A verified tool includes CRC checks of all read operations. Save this log as proof of successful, non-damaging repair.
Each sector read is verified against checksums (if available) or redundant file system structures. Corrupt blocks are skipped gracefully rather than crashing the repair.
The best tools never write to a failing JBOD. They create a virtual reconstruction of the concatenated volume and allow you to extract data to a separate healthy drive.