 <p>When the server is restarted it loses the connections of all the connected publishers and subscribers just like any other server, so obviously the live stream sources for the hls streams will be gone. The segments themselves only exist up to the maximum segment count per stream, this could be set to some really large number to keep all the segments and thus providing a vod type stream. As the creator of the plug-in, I don't recall if vod is supported out-of-the-box, so you'll have to do a little discovery there. </p>