I have a website with multiple subdomains that run a huge script for a Classified Ads website on each subdomain. Occasionally, my hosting goes down and people get Page Cannot Be Found. I have found some services that offer a service that backs up with your website every hour, and if added to the list of nameservers, will kick in and take the requests and show the backup files. My problem with this is, our site uses a database. So let's say that the backup kicked in, and then people listed an ad, making a change to the database on the backup site. Then the website comes back up with the primary DNS and the old database is up, without the ads that people placed, or users that signed up during the downtime. What can I do about this? Thanks