title: magento: fast_backend vs slow_backend vs backend - What is going on here?
body: <p>Heard some talk about this being something that can be set in <code>apt/etc/local.xml</code> but I didnt see any of it there by default..  Maybe you can add it?</p>
  
  <p>Anyway.  It was described to me that the <code>fast_backend</code> gets some of the magento stuff while the slow_backend get the other stuff and if <code>fast_backend</code> fails, then it will failover to <code>slow_backend</code>.</p>
  
  <p>Where do I set these options?
  What is stored in fast_backend?
  What is stored in slow_backend?</p>
  
  <p>What is the option "backend" for and what is stored there?</p>