Software and network issues, human error, and hackers are all known risks that application developers and IT leaders have to plan for when architecting their application stack. In fact, major outages are not particularly rare and the financial and reputational impact of outages is well documented. Gartner’s Andrew Lerner suggests that on average, enterprises pay $300K per hour but these costs may be much higher depending on the type of business you are in.
While the Internet is far from achieving the panacea of 100% uptime, there are best practices that application developers should keep in mind that will greatly reduce the likelihood of a business-impacting outage.
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The characteristics of a highly available application
Best practices for architecting a highly available application
Understanding third-party risk
What components should be in the cloud, a hybrid setup, or remain on-premise
Prepare for failures in the server, zone, and overall cloud
Use DNS with health checks and automated traffic management