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Fix heading formats and add logo in index

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Kalyanasundaram Somasundaram
2020-11-17 14:25:25 +05:30
parent 2522c5e91a
commit df350bcf24
5 changed files with 5 additions and 5 deletions
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courses/systems_design/availability.md
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## HA - Availability - Common “Nines”
# HA - Availability - Common “Nines”
Availability is generally expressed as “Nines”, common ‘Nines’ are listed below.
| Availability % | Downtime per year | Downtime per month | Downtime per week | Downtime per day |

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courses/systems_design/conclusion.md
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## Conclusion
# Conclusion
Armed with these principles, we hope the course will give a fresh perspective to design software systems. It might be over engineering to get all this on day zero. But some are really important from day 0 like eliminating single points of failure, making scalable services by just increasing replicas. As a bottleneck is reached, we can split code by services, shard data to scale. As the organisation matures, bringing in [chaos engineering](https://en.wikipedia.org/wiki/Chaos_engineering) to measure how systems react to failure will help in designing robust software systems.

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courses/systems_design/fault-tolerance.md
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## Fault Tolerance
# Fault Tolerance
Failures are not avoidable in any system and will happen all the time, hence we need to build systems that can tolerate failures or recover from them.