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So a couple of things:

1) Like any prepared person, I got all my data out of the east coast before this whole hurricane thing. If someone from Fog Creek hooked me up with some emergency licenses while they got their stuff sorted out, we'd be fine. Actually, this would be a good time to switch to self-hosted.

2) Second, while I was doing our hurricane prep, I ran into this blog post from Joel:

> Copies of the database backups are maintained in both cities, and each city serves as a warm backup for the other. If the New York data center goes completely south, we’ll wait a while to make sure it’s not coming back up, and then we’ll start changing the DNS records and start bringing up our customers on the warm backup in Los Angeles. It’s not an instantaneous failover, since customers will have to wait for two things: we’ll have to decide that a data center is really gone, not just temporarily offline, and they’ll have to wait up to 15 minutes for the DNS changes to propagate. Still, this is for the once-in-a-lifetime case of an entire data center blowing up

http://webcache.googleusercontent.com/search?q=cache:lHEK939...

Obviously this was written in 2007, but they claim to be geographically redundant and have geographic backups that are "never more than 15 minutes behind". Presumably things haven't deteriorated since then.



"and they’ll have to wait up to 15 minutes for the DNS changes to propagate"

Not sure I see the need for a propagation delay if customers can be pointed to the new site by simply using domainbackup.com instead of domain.com (in other words completely separate dns as well as a completely different domain (even through a completely separate registrar) to a site hosted elsewhere. They can know this in advance of course.


That text says "To implement this warm backup feature, I wrote a SQL mirroring application that implements transaction log shipping: ..... Right now, we’re log shipping twice a day, so you might lose a day of work if an entire city blew up, but in a couple of weeks, we’ll implement a system that does more continuous backups, and we expect that the warm backups will never get more than 15 minutes behind."

What happened to that? Was it turned off? How long did it last?

I also wonder how long FogCreek will still maintain the for-your-server version of FogBugz? Will it still be available next year?




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