Operational Excellence in AWS

Resilient Design

• Provides reliability: Assurance that the system is there when you need it.
• Automation of recovery, scaling, backups.
• Implement data-recovery, auto-scaling and backups.
• Test recovery and implement automatic recovery whenever possible.

Performance Design

• In the cloud, you gain the scalability advantage it offers, with potential increased performance.
• Can be enhanced through deploying solutions into multiple regions, which results in the service being closer to the end users.
• Serverless architectures can increase performances as the process receives the performance it requires.

Security Pillar

• Implement a strong identity foundation: Principle of least privilege and enforce separation of duties with appropriate authorization.
• Apply security at all-levels, account-level, VPC level, subnet, application.
• Automate security best practices: CloudTrail, so actions are logged.

3 Phases of Operational Excellence

1. Prepare
   • Understand workloads and expected behaviours.
   • Considerations:
     • Operational priorities,
     • Design for operations.
     • Operational readiness.
2. Operate
   • Monitor…
     • Environment health.
     • Discover business and technical insights.
   • Respond with…
     • Security.
     • Reliability.
     • Performance.
     • Cost.
3. Evolve
   • Learn from experience.
   • Shared learning.
   • Improve & scale.