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Your statement holds true if you use a single cloud provider. FTR we ran our own DCs with several AZs spread globally. We did suffer failures in individual DCs
by techie128 7y ago
Your statement holds true if you use a single cloud provider. FTR we ran our own DCs with several AZs spread globally. We did suffer failures in individual DCs occasionally but there was zero user-visible impact which is the whole point.
- EugeneOZ 7y agoSometimes mistake in router/balancer rules can make your servers non-accesible for users. Really huge systems sometimes can't be federated. I agree we need to design systems to be fault-tolerant and high-available but I also know there is no recipe suitable for every system.
- techie128 7y agoAgreed. What I said does not protect against BGP blackholing or ISP screw ups rendering services inaccessible. However, all I was pointing out that services could be built for higher uptime than what is currently being offered.