title: Mongo - rs.initiate() Error Code 76
body: <p>I am new to mongoDB and am trying to use the following. </p>
  
  <pre><code>res = rs.initiate(
  {
      "_id" : "ireland",
      "members" : [
          { _id:0,host:myName+".local:"+"27000" },
          { _id:1,host:myName+".local:"+"27001" },
          { _id:2,host:myName+".local:"+"27002" }
      ]
  }
  </code></pre>
  
  <p>);</p>
  
  <p>I then get the following error message. </p>
  
  <pre><code>{
  "ok" : 0,
  "errmsg" : "This node was not started with the replSet option",
  "code" : 76,
  "codeName" : "NoReplicationEnabled"
  </code></pre>
  
  <p>}
  I have looked around online with no luck. I found some similar questions on here but none of the answers helped. </p>