title: How to force ElasticSearch to index data on particular node
body: <p>I have 8 boxes: 4 high performance boxes with 1TB and 4 rather low performance boxes but with much bigger disk storage about 6TB. Each indexed document has "date" field and 80% of my search usecases occurs in the past two years (volume of last 2 years is about 800GB).</p>
  
  <p>So, idea is following: force ElasticSearch to store documents from last 2 years on shards distributed between high performance boxes and rest of data (older than 2 years) on shards distributed between low performance boxes.</p>
  
  <p>Question is: how can I configure ES cluster to achieve this?</p>
  
  <p>I was reading about _routing, but I have no idea how I can adapt it for my idea?</p>
  
  <p>Appreciate for your ideas/ help.</p>