return err
	}

	if n != len(buf) {
		return io.ErrShortWrite
	}

	return nil
}

// checkPart is a light check of an existing and size of a part, without doing a bitrot operation
// For any unexpected error, return checkPartUnknown (zero)
func (s *xlStorage) checkPart(volumeDir, path, dataDir string, partNum int, expectedSize int64, skipAccessCheck bool) (resp int) {

  @Override
  public boolean contains(@Nullable Object object) {
    if (!allowNulls) {
      // behave badly
      if (object == null) {
        throw new NullPointerException();
      }
    }
    Platform.checkCast(type, object); // behave badly
    return asList(contents).contains(object);
  }

  @Override
  public boolean containsAll(Collection<?> collection) {
    if (!allowNulls) {
      for (Object object : collection) {

			// parts. This is considered an outdated disk, since
			// it needs healing too.
			verifyResp, verifyErr = onlineDisk.VerifyFile(ctx, bucket, object, meta)
		default:
			verifyResp, verifyErr = onlineDisk.CheckParts(ctx, bucket, object, meta)
		}

		for p := range latestMeta.Parts {
			if verifyErr != nil {
				dataErrsByPart[p][i] = convPartErrToInt(verifyErr)
			} else {
				dataErrsByPart[p][i] = verifyResp.Results[p]

	})
}

func (p *xlStorageDiskIDCheck) CheckParts(ctx context.Context, volume string, path string, fi FileInfo) (*CheckPartsResp, error) {
	ctx, done, err := p.TrackDiskHealth(ctx, storageMetricCheckParts, volume, path)
	if err != nil {
		return nil, err
	}
	defer done(0, &err)

	return p.storage.CheckParts(ctx, volume, path, fi)
}

	checkPartSuccess
	checkPartDiskNotFound
	checkPartVolumeNotFound
	checkPartFileNotFound
	checkPartFileCorrupt
)

// CheckPartsResp is a response of the storage CheckParts and VerifyFile APIs
type CheckPartsResp struct {
	Results []int `msg:"r"`
}

// LocalDiskIDs - GetLocalIDs response.
type LocalDiskIDs struct {
	IDs []string `msg:"i"`
}