<name>downloadUrl</name>
          <version>4.0.0+</version>
          <description>
            The URL of the project's download page. If not given users will be
            referred to the homepage given by {@code url}.
            This is given to assist in locating artifacts that are not in the repository due to
            licensing restrictions.
          </description>
          <type>String</type>

	err = c.validateIDPSettings(ctx, sites)
	if err != nil {
		return madmin.ReplicateAddStatus{}, err
	}

	// For this `add` API, either all clusters must be empty or the local
	// cluster must be the only one having some buckets.
	if localHasBuckets && nonLocalPeerWithBuckets != "" {
		return madmin.ReplicateAddStatus{}, errSRInvalidRequest(errors.New("only one cluster may have data when configuring site replication"))
	}