Knowledge Base & Terminology
SaaS & Upwatch Knowledge Glossary
Comprehensive, evidence-backed reference guides to essential Edge Uptime Monitoring & Status Pages metrics, architectures, and formulas.
DevOps & Reliability
Reference
Uptime Service Level Agreement (SLA)
A contractual commitment guaranteeing that a software system will remain operational for a specified percentage of time.
Formula: Uptime (%) = ((Total Available Minutes - Outage Minutes) / Total Minutes) * 100
99.9% (Three 9s) allows 43.8 minutes of downtime per month. 99.99% (Four 9s) allows only 4.38 minutes.
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