Avoiding outages isn't an act of luck, but the result of deliberate, structured engineering that plans for the worst while delivering consistent performance in the best of times. These aren't just IT ideals—they're essential blueprints for sustainabl...
Introduction In modern cloud architectures, high availability and fault tolerance are essential to ensure continuous service delivery. In this post, I will walk you through creating a highly available architecture on AWS, focusing on the integration ...
We’ve all heard the phrase, “Everything happens for a reason.” But when you’re sitting across from your boss, listening as they explain that your time with the company has come to an end, those words rarely bring comfort. If you’ve ever been fired, y...
In Layer 2 Ethernet networks, resilience is key. Unlike Layer 3, where routing protocols dynamically reroute traffic, Layer 2 has limited options when it comes to path redundancy. Enter Link Aggregation (LAG)—a method that allows multiple physical li...
When London Heathrow Airport—one of the busiest airports in the world—grounded to a halt due to a power failure, it wasn’t just a minor inconvenience. It was a textbook example of why relying on a single point of failure (SPOF) is a recipe for disast...
When discussing system design, it is not uncommon to find multiple closely related terms that can be muddled up or conflated, one with the other. Two such terms are Replication and Redundancy. In good system design, it is important that a system is h...
Redundancy in networking is a cornerstone of resilience. From switch port bonds and RAID arrays to dual PSUs and backup links, these systems are designed to keep the lights on when things go wrong. However, the efficacy of redundancy depends not just...
When it comes to managing backups in a dynamic, cloud-based enterprise, AWS Organization-wide Backup Policies offer a scalable and cost-effective solution to ensure data redundancy, business continuity, and compliance. As enterprises grow and diversi...
Solely relying on a single platform for code storage is a risky gamble As someone who has been an active GitHub user for the past 10 years, I recently found myself in a dilemma that has shaken my faith in the platform. On Friday 11 April, 2024, I rec...
Redundancy is a word that we hear very regularly in Software Engineering. As I have started exploring the mental models, one of the models that started captivating my attention is Redundancy. So, I juxtaposed it with the principle in Software Enginee...
