<p>The identifier or Amazon Resource Name (ARN) for the source cluster parameter group.</p> <p>Constraints:</p> <ul> <li> <p>Must specify a valid cluster parameter group.</p> </li> <li> <p>If the source cluster parameter group is in the same Amazon Web Services Region as the copy, specify a valid parameter group identifier; for example, <code>my-db-cluster-param-group</code>, or a valid ARN.</p> </li> <li> <p>If the source parameter group is in a different Amazon Web Services Region than the copy, specify a valid cluster parameter group ARN; for example, <code>arn:aws:rds:us-east-1:123456789012:sample-cluster:sample-parameter-group</code>.</p> </li> </ul>

<p>The identifier for the copied cluster parameter group.</p> <p>Constraints:</p> <ul> <li> <p>Cannot be null, empty, or blank.</p> </li> <li> <p>Must contain from 1 to 255 letters, numbers, or hyphens. </p> </li> <li> <p>The first character must be a letter.</p> </li> <li> <p>Cannot end with a hyphen or contain two consecutive hyphens. </p> </li> </ul> <p>Example: <code>my-cluster-param-group1</code> </p>