Insights

The Reliability Pillar: Building Workloads You Can Depend On

Dave Young — 3 December, 2024

Planning for reliable workloads once required significant time, careful forecasting of future demand, and meticulous preparation. Today, cloud computing has transformed reliability, offering advanced tools and features to boost resilience. However, achieving reliable workloads that align with your business needs demands thoughtful planning—balancing cost, complexity, and security.

Confidence in the reliability of your critical workloads does more than just keep systems running; it empowers your team to focus on delivering business outcomes rather than constantly firefighting escalations or performing root cause analyses. That said, while reliability has become more accessible, it also comes with its own set of challenges and trade-offs.

Balancing Reliability with Other Pillars

At Chamonix, we believe that the reliability of your workloads should reflect your organisation’s priorities. For example, investing in high availability for non-critical features can lead to wasted resources. Taking a strategic approach ensures you achieve systems that are both reliable and efficient.

Here’s how reliability intersects with other key cloud pillars:

Security vs. Reliability: Improving reliability often involves redundancy and replication across multiple locations. While these measures enhance resilience, they can also introduce additional attack vectors, necessitating robust security measures.

Cost vs. Reliability: Cloud Services like on-demand compute are incredibly powerful but come at a cost for every feature activated.  Ensuring reliability investments are targeted at critical workloads is key to keeping costs under control.

Operational Excellence vs. Reliability: Reliable systems often add complexity. Extra components and configurations need to be carefully managed and monitored to maintain operational excellence.

Pro tip: Define clear Recovery Point Objectives (RPO) and Recovery Time Objectives (RTO) for your applications. These metrics help you make informed decisions about reliability architecture and design.

Strategy for Designing Reliable Cloud Systems

Creating resilient workloads doesn’t have to involve significant investments. Instead, a thoughtful review of your organisation’s workload maturity can reveal practical opportunities for improvement.

Key Actions for Reliable Design:

  1. Identify Priorities:
    Determine which application components can tolerate a degraded state, are non-customer-facing, or have longer RTOs. This approach helps focus resources on the areas that genuinely impact performance and customer satisfaction.
  1. Leverage Open-Source Tools:
    Tools like Archi —an open-source modelling toolkit—can visualise application architectures and their interrelationships. By integrating data from your CMDB, Archi helps you pinpoint opportunities to streamline and optimise reliability.
  1. Avoid Feature Overload:
    While cloud platforms offer many powerful features, enabling them all indiscriminately can increase costs and complexity without delivering meaningful benefits. Focus on features that align with your business and reliability goals.

By understanding your application architecture and aligning it with business priorities, you can build resilient systems that meet customer expectations while optimising costs and complexity.

Conclusion: Simplifying Reliability with Expertise

Microsoft’s Well-Architected Framework (WAF) provides invaluable guidance for building reliable workloads, but navigating its scope can feel overwhelming. That’s where we come in. At Chamonix, our team specialises in applying WAF principles to address your unique reliability challenges, freeing you to focus on your business objectives.

Ready to enhance the reliability of your cloud workloads?
Contact Chamonix to explore how our expertise can help your organisation create dependable, efficient, and cost-effective cloud solutions.

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