Site Reliability Engineering: How to Run Software That Never Goes Down
Site Reliability Engineering emerged from Google’s need to operate systems at a scale where traditional system administration practices simply did not scale. Its principles — SLOs, error budgets, blameless post-mortems, and toil reduction — are now being adopted by organisations of all sizes.
Service Level Objectives (SLOs) Explained
An SLO is a target reliability level for a service, expressed as a percentage of requests that meet a defined quality threshold. For example: “99.9% of homepage requests should respond within 200ms.” SLOs replace vague and unactionable uptime promises with precise, measurable commitments.
