Recovered Write Errors. This shows the number of write errors corrected through physical drive retries or recovered by a physical drive during the reference time (phyDrvRefTime). Over time a disk drive may produce these errors. If you notice an increase in the value shown for Hard Write Errors or Recovered Write Errors, a problem may exist with the drive. The value increases every time the physical drive detects and corrects an error. Only an unusually rapid increase in these errors indicates a problem. On average, these errors should occur less frequently than hard read errors. If you suspect that a problem may exist with the drive, run diagnostics. If the value cannot be determined, 4,294,967,295 is returned.