// Get parity and data drive count based on storage class metadata
	parityDrives := globalStorageClass.GetParityForSC(userDefined[xhttp.AmzStorageClass])
	if parityDrives < 0 {
		parityDrives = er.defaultParityCount
	}

	if globalStorageClass.AvailabilityOptimized() {
		// If we have offline disks upgrade the number of erasure codes for this object.
		parityOrig := parityDrives

		var offlineDrives int

	}

	// Number of parity drives should be integer
	parityDrives, err := strconv.Atoi(s[1])
	if err != nil {
		return StorageClass{}, config.ErrStorageClassValue(err)
	}
	if parityDrives < 0 {
		return StorageClass{}, config.ErrStorageClassValue(nil).Msg("Unsupported parity value " + s[1] + " provided")
	}
	return StorageClass{
		Parity: parityDrives,
	}, nil
}