if err != nil {
		t.Fatal(err)
	}

	// Check if the reference format and input formats are same.
	if err = formatErasureV3Check(quorumFormat, formats[0]); err != nil {
		t.Fatal(err)
	}

	// QuorumFormat has .This field empty on purpose, expect a failure.
	if err = formatErasureV3Check(formats[0], quorumFormat); err == nil {
		t.Fatal("Unexpected success")
	}

	formats[0] = nil

		}
		if format.Drives() == maxDrives {
			format := formats[i].Clone()
			format.Erasure.This = ""
			return format, nil
		}
	}

	return nil, errErasureReadQuorum
}

func formatErasureV3Check(reference *formatErasureV3, format *formatErasureV3) error {
	tmpFormat := format.Clone()
	this := tmpFormat.Erasure.This
	tmpFormat.Erasure.This = ""
	if len(reference.Erasure.Sets) != len(format.Erasure.Sets) {

// format, after successful validation.
//   - i'th position is the set index
//   - j'th position is the disk index in the current set
func findDiskIndex(refFormat, format *formatErasureV3) (int, int, error) {
	if err := formatErasureV3Check(refFormat, format); err != nil {
		return 0, 0, err
	}

	if format.Erasure.This == offlineDiskUUID {
		return -1, -1, fmt.Errorf("DriveID: %s is offline", format.Erasure.This)
	}