What does NTSTATUS 0xC01A0002 (STATUS_LOG_SECTOR_PARITY_INVALID) mean?

 
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STATUS_LOG_SECTOR_INVALID STATUS_LOG_SECTOR_REMAPPED

STATUS_LOG_SECTOR_PARITY_INVALID

STATUS_LOG_SECTOR_PARITY_INVALID identifies a failed parity check for a sector in a CLFS physical log. CLFS log I/O blocks are placed on stable storage in sector-aligned units, so a sector-level integrity failure can prevent the surrounding block from being trusted for record recovery.

Do not collapse this result into STATUS_LOG_SECTOR_INVALID. An invalid sector can fail structural validation for several reasons; this code specifically identifies the integrity parity associated with the sector. It is also different from STATUS_LOG_BLOCK_INCOMPLETE, which describes a partial block rather than a parity mismatch.

Validate the complete log set

  • Preserve the affected base log file and all containers before retrying any cleanup or archive action.
  • Correlate the reported container and LSN with storage and system-event evidence; the status alone does not prove a hardware failure.
  • Validate or restore the log as a CLFS log set, not as unrelated files whose bytes can safely be repaired independently.

References


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