isables this feature,
         effectively setting the snapshot age limit to infinity.
         This parameter can only be set at server start.
        </p><p>
         Useful values for production work probably range from a small number
         of hours to a few days.  Small values (such as <code class="literal">0</code> or
         <code class="literal">1min</code>) are only allowed because they may sometimes be
         useful for testing.  While a setting as high as <code class="literal">60d</code> is
