expectedError   error
	}{
		{
			"EC:3",
			StorageClass{
				Parity: 3,
			},
			nil,
		},
		{
			"EC:4",
			StorageClass{
				Parity: 4,
			},
			nil,
		},
		{
			"AB:4",
			StorageClass{
				Parity: 4,
			},
			errors.New("Unsupported scheme AB. Supported scheme is EC"),
		},
		{
			"EC:4:5",
			StorageClass{
				Parity: 4,
			},