EC2 Instances and EBS

Here are a few things I have recently learnt about EC2 instancess:
1. I think (but am yet to test again and confirm) an attached EBS will be dropped when you create an AMI from a currently running Instance.
2. Before you apt-get upgrade create an AMI as a back up, its just to much heart ache creating eveything again – especially when its a “I’ll just do this before I go to bed l” late Sunday night and then don’t get to be till 1am because your last AMI was created a week ago and now you have to rebuild a recently installed wordpress blog.
3. Make sure you at least attach an EBS and mount it to store your email, at least then when 2 above happens your golden for your emails.
4. Seriously consider moving mySQL db to an EBS volume, wehn your micro instance falls over you have lost everything since the last AMI was created (or the last backup at least).