Reliability in the AWS Well-Architected Framework

3 minute read | Last updated 25-Nov-2021 | An icon depicting a retail tag with a heart for 'favourite' AWS, Cloud

Reliability is one of the five pillars of the AWS Well-Architected Framework. The framework describes the principles and techniques required to make informed trade-offs when you’re building in the AWS Cloud.

I’ve taught thousands of builders how to build better using the framework on the A Cloud Guru platform. Be sure to check out my course, “Mastering The Well-Architected Framework”

This 👇 Twitter thread dives deeper into the Reliability pillar of the framework…

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the Reliability Pillar is on tap today. this is one of the five pillars of the @awscloud Well-Architected Framework

this pillar is all about making sure that your systems work CONSISTENTLY and RECOVER quickly

🧵☁️ #cloud #devops

marknca @marknca tweeted at 25-Nov-2021, 13:01

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this thread is available unrolled at https://markn.ca/2021/reliability-in-the-aws-well-architected-framework/

yesterday’s thread on the Cost Optimization Pillar is up at https://markn.ca/2021/cost-optimization-in-the-aws-well-architected-framework/

🧵☁️ #cloud #devops

marknca @marknca tweeted at 25-Nov-2021, 13:01

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. @awscloud defines reliability as, "…the ability of a workload to recover from infrastructure or service disruptions, dynamically…meet demand, and mitigate disruptions."

simply: systems shouldn’t fail & if they do, recover quickly & automatically

🧵☁️ #cloud #devops

marknca @marknca tweeted at 25-Nov-2021, 13:01

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three areas of focus for the Reliability Pillar:

limits == know them, stay within them
networking == topology, bandiwdth, & latency will impact a lot of things
availability == your solution should be ready for business use almost all of the time

🧵☁️ #cloud #devops

marknca @marknca tweeted at 25-Nov-2021, 13:01

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. @werner's keynote from @awscloud #reinvent last year centered around the ideas that are core to this pillar.

if you haven’t already, watch it at https://www.youtube.com/watch?v=jt-gV1YwmnI&feature=youtu.be

(even if you have, it’s worth a re-watch)

🧵☁️ #cloud #devops

marknca @marknca tweeted at 25-Nov-2021, 13:01

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the pillar principles here are:

recover from issues automatically
scale horizontally first for resiliency
redule idle resources
manage change through automation
recover from issues automatically 😉

🧵☁️ #cloud #devops

marknca @marknca tweeted at 25-Nov-2021, 13:01

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biggest mistake I see with this pillar is that builders put too much focus on things never failing

that would be great but 💩 happens. being able to recover automatically will do a lot more for your customers than trying to make everything 100% available

🧵☁️ #cloud #devops

marknca @marknca tweeted at 25-Nov-2021, 13:01

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you can read the entire Reliability Pillar at https://docs.aws.amazon.com/wellarchitected/latest/reliability-pillar/welcome.html

remember, the Framework teaches you to balance the concerns of the five pillars to find the right fit for your solution…and that balance will change regularly

/🧵☁️ #cloud #devops

marknca @marknca tweeted at 25-Nov-2021, 13:01

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Reliability in the AWS Well-Architected Framework

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