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SLI / SLO / SLA

Business & Strategy

Service-level indicators, objectives, and agreements

What is SLI / SLO / SLA?

SLI is a metric (e.g., latency), SLO is a target for that metric, SLA is a formal contract that may have penalties.

Real-World Examples

  • SLO: 99.9% request success rate
  • SLA: contractual uptime