title: How to backup really huge mongoDB database
body: <p>I have to backup a huge mongoDB - it's something around 400GB of data.</p>
  
  <p>When I tried copy db from the console it has gone like forever to execute (I understand it is huge amount of data but after 1 day of waiting it looked like hung-up process)</p>
  
  <p>Anyone tried backup/migrate that big mongoDB database? Any tips? </p>
  
  <p>At the moment I don't need to care about slowing down the server etc. so every kind of tips are welcome.</p>