anchor.diff:  
   //NOTE: The tagged regions are re-used in the Stack Overview.
   
  -. Enable the collection of monitoring data. Set 
  -`xpack.monitoring.collection.enabled` to `true` on each node in the production 
  -cluster. By default, it is is disabled (`false`). 
  -+ 
  ---
  +. Enable the collection of monitoring data.
  ++
  +--
  +// tag::enable-collection[]
  +Set `xpack.monitoring.collection.enabled` to `true` on each node in the
  +production cluster. By default, it is is disabled (`false`). 
  +
   NOTE: You can specify this setting in either the `elasticsearch.yml` on each 
   node or across the cluster as a dynamic cluster setting. If {es} 
   {security-features} are enabled, you must have `monitor` cluster privileges to 
  
positive.code: }
  ----------------------------------
  // CONSOLE 
  
  For more information, see <<monitoring-settings>> and <<cluster-update-settings>>.
  --
  
  . Disable the default collection of {es} monitoring metrics. Set 
  `xpack.monitoring.elasticsearch.collection.enabled` to `false` on each node in 
  the production cluster.
  + 
  --
  NOTE: You can specify this setting in either the `elasticsearch.yml` on each 
  node or across the cluster as a dynamic cluster setting. If {es} 
  {security-features} are enabled, you must have `monitor` cluster privileges to 
  
negative.code: // CONSOLE
  
  Leave `xpack.monitoring.enabled` set to its default value (`true`). 
  // end::disable-default-collection[]
  --
  
  . {metricbeat-ref}/metricbeat-installation.html[Install {metricbeat}] on each
  