}

		if parityDrives >= len(storageDisks)/2 {
			parityDrives = len(storageDisks) / 2
		}

		if parityOrig != parityDrives {
			userDefined[minIOErasureUpgraded] = strconv.Itoa(parityOrig) + "->" + strconv.Itoa(parityDrives)
		}
	}
	dataDrives := len(storageDisks) - parityDrives

	// we now know the number of blocks this object needs for data and parity.