Tutorials Software Architect Tutorial
High Availability Patterns
High Availability Patterns: free step-by-step lesson with examples, common mistakes, and interview tips — part of Software Architect Tutorial on Toolliyo Academy.
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Software Architect Tutorial · Lesson 67 of 100
High Availability Patterns
Foundations & Styles ✓ → Distributed & Data ✓ → Cloud & Quality → Leadership & Cases
Cloud & Quality · 3 — Operate · ~10 min · Performance and Resilience
What is this?
High Availability Patterns improves performance and resilience with measured techniques.
Why should you care?
Optimization without SLOs is guesswork.
See it live — copy this example
These are architecture exercises: fill templates, draw boxes, write ADRs. No cloud bill required.
# High Availability Patterns
SLO: ...
Bottleneck hypothesis: ...
Experiment: ...What happened?
- State SLO, hypothesis, and a cheap experiment.
- Follow the steps below — typing the code yourself is the fastest way to learn.
Practice next
- Fill the template for your platform or a product you know.
- State one trade-off explicitly (“we give up X to get Y”).
- Draw a 5-box diagram on paper.
- Add a failure mode.
- Remove one unnecessary component.
Remember
You can explain High Availability Patterns simply. You captured a trade-off. You have a tiny artifact (table/diagram/ADR).
High Availability Patterns design review
ArchDesk stakeholders challenge your take on high availability patterns.
Outcome: You defend it with qualities and consequences.
Interview prep for this lesson
Practice these questions aloud after reading—each links to a full structured answer.
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