It's not about backup but resilience - lessons from a hot Perth
Over in Perth, the Internet melted (read about it here). What is obvious is that these guys never designed a resilient network, neither did they test it. Most people would say they should have had everything backed up and duplicated and deployed at an alternative location. Well, that might be a strategy but does it really address the problem? No, an ISPs customers are only interested in receiving uninterrupted service or as a worse case scenario, a degraded service that isn't debilitating.
Read the full article on Pulse here.