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IT disaster recovery / IT contingency planning

After last week’s outage, we’re revisiting our DR plan. It’s actually pretty good, and the scheme to activate our externally hosted alternate website for the school worked. However, there are two things to change. I noted them in my comments to Friday’s post, but I’ll make them a little more public here:

1. DNS TTL: our emergency site had a value of 30 minutes. This is too long. I think 5 minutes for the initial value, assuming we could change this on the fly if we felt the emergency site would be up for longer. We would like the real site … Continue Reading