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Quickly Switching Your Servers to Backups?
moogoogaipan writes "After a few days thinking about the quickest way to bring my website back to the internet users, I am still stuck at DNS. From experience, even if I set the TTL for my DNS zone file as low as 5 minutes, there are still DNS servers out there won't update until a few days later (Yeah. I'm looking at you, AOL). Here is my situation. Say that I have my web servers and database servers at a remote backup location, ready to serve. If we get hit by an earthquake at our main location, what can I do in a few hours to get everyone to go to our backup location?"
Ok sure, but if you're the kind of company that is making millions of dollars a minute through your website, you're paying qualified IT professionals to go out and spend a bundle of money developing an architecture that will allow full global load balancing with constant mirroring, probably with dedicated circuits between sites. You are definitely not posting Ask Slashdot articles about how to get around other ISPs' annoying habit of holding on to DNS records for too long.