title: Amazon S3 Object Replication
body: <p>Folks,
    I may be reading things different, however I've been under the impression that objects and buckets in us-east do NOT get replicated automatically to us-west...  However, reading the documentation, I see 2 conflicting statements:</p>
  
  <p>From <a href="http://aws.amazon.com/s3/" rel="nofollow">http://aws.amazon.com/s3/</a> :</p>
  
  <blockquote>
    <p>Objects stored in a Region never leave the Region unless you transfer
    them out. For example, objects stored in the EU (Ireland) Region never
    leave the EU.</p>
  </blockquote>
  
  <p>However, in <a href="http://docs.aws.amazon.com/general/latest/gr/rande.html#s3_region" rel="nofollow">http://docs.aws.amazon.com/</a> :</p>
  
  <blockquote>
    <p>s3.amazonaws.com endpoint — Amazon S3 automatically routes requests to
    facilities in Northern Virginia or the Pacific Northwest using network
    maps.</p>
  </blockquote>
  
  <p>Objects stored in US Standard are replicated across multiple datacenters in the Pacific Northwest and N. Virginia, and if you access S3 with the URL endpoint that is not region specific then requests will be routed to the closest datacenter (based on our geo-ip information).</p>
  
  <p>So, my question is, which is it?  Do objects get automatically copied?  Or do we copy objects manually between regions, then use the s3.amazonaws.com endpoint?</p>
  
  <p>Thanks!</p>