case errDiskFull.Error():
		return errDiskFull
	case errVolumeNotFound.Error():
		return errVolumeNotFound
	case errVolumeExists.Error():
		return errVolumeExists
	case errFileNotFound.Error():
		return errFileNotFound
	case errFileVersionNotFound.Error():
		return errFileVersionNotFound
	case errFileNameTooLong.Error():
		return errFileNameTooLong
	case errFileAccessDenied.Error():

			driveState = madmin.DriveStateOk
		case errs[i] == errDiskNotFound, dataErrs[i] == errDiskNotFound:
			driveState = madmin.DriveStateOffline
		case errs[i] == errFileNotFound, errs[i] == errFileVersionNotFound, errs[i] == errVolumeNotFound:
			fallthrough
		case dataErrs[i] == errFileNotFound, dataErrs[i] == errFileVersionNotFound, dataErrs[i] == errVolumeNotFound:
			driveState = madmin.DriveStateMissing
		default:

		}
		if err != nil {
			// Folder could have gone away in-between
			if err != errVolumeNotFound && err != errFileNotFound {
				internalLogOnceIf(ctx, err, "metacache-walk-scan-dir")
			}
			if opts.ReportNotFound && err == errFileNotFound && current == opts.BaseDir {
				err = errFileNotFound
			} else {
				err = nil
			}
			diskHealthCheckOK(ctx, err)
			return err
		}
		diskHealthCheckOK(ctx, err)

			metaArr: []FileInfo{
				{},
				{},
				{},
				fi,
			},
			errs: []error{
				errFileNotFound,
				errFileNotFound,
				nil,
				nil,
			},
			dataErrs: []error{
				errFileNotFound,
				errFileNotFound,
				nil,
				errFileNotFound,
			},
			expectedMeta:     fi,
			expectedDangling: true,
		},
		// Add new cases as seen
	}
	for _, testCase := range testCases {

	if err != nil {
		if osErrToFileErr(err) == errFileNotFound {
			return nil
		}
		return osErrToFileErr(err)
	}
	defer d.Close()

	maxEntries := 1000
	for {
		// Read up to max number of entries.
		fis, err := d.Readdir(maxEntries)
		if err != nil {
			if err == io.EOF {
				break
			}
			err = osErrToFileErr(err)
			if err == errFileNotFound {
				return nil
			}
			return err
		}

			if err := renameAll(pathJoin(epPath, minioMetaBucket, metacachePrefixForID(name, slashSeparator)),
				tmpMetacacheOld, epPath); err != nil && err != errFileNotFound {
				return fmt.Errorf("unable to rename (%s -> %s) %w",
					pathJoin(epPath, minioMetaBucket+metacachePrefixForID(minioMetaBucket, slashSeparator)),
					tmpMetacacheOld,
					osErrToFileErr(err))
			}
		}

	closed
)

// NetworkError - error type in case of errors related to http/transport
// for ex. connection refused, connection reset, dns resolution failure etc.
// All errors returned by storage-rest-server (ex errFileNotFound, errDiskNotFound) are not considered to be network errors.
type NetworkError struct {
	Err error
}

func (n *NetworkError) Error() string {
	return n.Err.Error()
}

			p.buf[bufIdx] = p.buf[bufIdx][:p.shardSize]
			n, err := rr.ReadAt(p.buf[bufIdx], p.offset)
			if err != nil {
				switch {
				case errors.Is(err, errFileNotFound):
					atomic.StoreInt32(&missingPartsHeal, 1)
				case errors.Is(err, errFileCorrupt):
					atomic.StoreInt32(&bitrotHeal, 1)
				case errors.Is(err, errDiskNotFound):
					atomic.AddInt32(&disksNotFound, 1)

			errDiskNotFound,
			errDiskNotFound,
		}, []error{errDiskNotFound}, errVolumeNotFound},
		{[]error{}, []error{}, errErasureReadQuorum},
		{
			[]error{
				errFileNotFound, errFileNotFound, errFileNotFound,
				errFileNotFound, errFileNotFound, nil, nil, nil, nil, nil,
			},
			nil, nil,
		},
		// Checks if wrapped context cancellation errors are grouped as one.
		{canceledErrs, nil, context.Canceled},
	}

	if _, err := readDir("/tmp/non-existent-directory"); err != errFileNotFound {
		t.Fatalf("expected = %s, got: %s", errFileNotFound, err)
	}

	file := path.Join(os.TempDir(), "issue")
	if err := os.WriteFile(file, []byte(""), 0o644); err != nil {
		t.Fatal(err)
	}
	defer os.RemoveAll(file)

	// Check if file is given.
	if _, err := readDir(path.Join(file, "mydir")); err != errFileNotFound {