anchor.diff:  ----
   <1> Specify the number of nodes you want in your cluster.
   <2> Specify the `data` role.
  +
  
positive.code: // * logging/efk-logging-elasticsearch.adoc
  
  [id='efk-logging-elasticsearch-add-remove_{context}']
  = Changing the number of Elasticsearch nodes
  
  You can scale the number of data nodes in Elasticsearch.
  
  For example, if you want to increase redundancy, and use the `FullRedundancy` or `MultipleRedundancy` policy, you can add additional data nodes to increase the number of shard replicas in your cluster.  
  
  .Prerequisite
  
  
negative.code: 
  .Procedure
  
  . To scale up the cluster, create a Cluster Logging Custom Resource (CR) to add a number of nodes of a specific type:
  +
  [source,yaml]
  ----
  