}

  private fun corruptMetadata(corruptor: (String) -> String) {
    val metadataFile =
      fileSystem.allPaths.find {
        it.name.endsWith(".0")
      }

    if (metadataFile != null) {
      val contents =
        fileSystem.read(metadataFile) {
          readUtf8()
        }

      fileSystem.write(metadataFile) {
        writeUtf8(corruptor(contents))
      }
    }
  }

			metaErrs[i] = errDiskNotFound
			continue
		}

		meta := partsMetadata[i]
		corrupted := false
		if filterByETag {
			corrupted = meta.Metadata["etag"] != latestMeta.Metadata["etag"]
		} else {
			corrupted = !meta.ModTime.Equal(latestMeta.ModTime) || meta.DataDir != latestMeta.DataDir
		}

		if corrupted {
			metaErrs[i] = errFileCorrupt
			partsMetadata[i] = FileInfo{}
			onlineDisks[i] = nil

xl.meta-corrupt...

MinIO protects data against hardware failures and silent data corruption using erasure code and checksums. With the highest level of redundancy, you may lose up to half (N/2) of the total drives and still be able to recover the data.

## What is Erasure Code?

	WANT='{ "before": { "color": "green", "missing": 0, "corrupted": 1 }, "after": { "color": "green", "missing": 0, "corrupted": 0 }, "args": {"file": "'${FILE}'", "dir": "'${DIR}'", "deep": true} }'
	verify_resiliency_healing "${FUNCNAME[0]}" "${WANT}"

	# Induce bitrot in two parts -- status becomes yellow (2 corrupted)
	induce_bitrot "2" "/data"$((DATA_DRIVE)) $FILE

 * This can cause race conditions leading to:
 * - `FileAlreadyExistsException` when extracting files
 * - Corrupted installations (e.g., "Build-tool X has corrupt source.properties")
 * - Missing SDK components after installation
 *
 * This plugin generates minimal Android projects for specified SDK version combinations and builds them

				notFoundCount++
			} else if isErrBucketNotFound(err) {
				notFoundCount++
			}
		}
	}
	return len(errs) == notFoundCount
}

// ObjectDir is considered dangling/corrupted if any only
// if total disks - a combination of corrupted and missing
// files is lesser than N/2+1 number of disks.
// If no files were found false will be returned.
func isObjectDirDangling(errs []error) (ok bool) {
	var found int

var errUnexpected = StorageErr("unexpected error, please report this issue at https://github.com/minio/minio/issues")

// errCorruptedFormat - corrupted format.
var errCorruptedFormat = StorageErr("corrupted format")

// errCorruptedBackend - corrupted backend.
var errCorruptedBackend = StorageErr("corrupted backend")

// errUnformattedDisk - unformatted disk found.
var errUnformattedDisk = StorageErr("unformatted drive found")

ALIAS_NAME=myminio
BUCKET="test-bucket"
JQUERY='select(.name=="'"${BUCKET}"'/'"${DIR}"'/'"${FILE}"'") | {"before":{"color": .before.color, "missing": .before.missing, "corrupted": .before.corrupted},"after":{"color": .after.color, "missing": .after.missing, "corrupted": .after.corrupted}}'
if [ "$DEEP" = "true" ]; then
	SCAN_DEEP="--scan=deep"
fi

GOT=$(./mc admin heal --json ${SCAN_DEEP} ${ALIAS_NAME}/${BUCKET}/${DIR}/${FILE})

- Any JBOD inconsistent - return failure
- Some are corrupt (missing format.json) - return failure
- Any unrecognized disks - return failure

Some disks are offline and we have quorum.
-----------------
- Some unformatted - format all and return success,
  treat disks offline as corrupted.
- Any JBOD inconsistent - return failure
- Some are corrupt (missing format.json)
- Any unrecognized disks - return failure