title: Most effective way to transfer almost 400k images to S3
body: <p>I am currently in charge of transferring a site from its current server to EC2, that part of the project is done and fine, the other part is the part I am struggling with, the site currently has almost 400K images, all sorted within different folders within a main userimg folder, the client wants all these images to be stored on S3 - the main problem I have is how do I transfer almost 400,000 images from the server to S3 - I have been using <a href="http://s3tools.org/s3cmd" rel="nofollow">http://s3tools.org/s3cmd</a> which is brilliant but if I was to transfer the userimg folder with s3cmd it is going to take almost 3 days solid, and if the connection breaks or similar problem I am going to have some images on s3 and some not, with no way to continue the process... </p>
  
  <p>Can anyone suggest a solution, has anyone come up against a problem like this before? </p>