Advanced Service Level Management is now GA

"Our new Maintenance Windows feature allows you to define these periods in advance. During a scheduled window, "bad events" or outages are automatically suppressed from your SLI calculations. This ensures your Error Budgets remain intact for actual, unplanned outages, giving your stakeholders a truthful representation of your operational performance."

"Facet Service Level Compliance allows you to break down your compliance data by any attribute-such as region, user tier, version, or specific API endpoint. Instead of seeing a generic "99.5% compliance," you can facet that data to see that your "Premium Tier" users in the "EU-West" region are actually experiencing 94% compliance."

"Understanding "uptime" at an aggregate level is no longer enough for modern, distributed systems. Facet Service Level Compliance allows you to break down your compliance data by any attribute-such as region, user tier, version, or specific API endpoint. This precision allows you to identify and fix localized issues before they impact your global SLO."

"Think of your reliability as a currency. If your goal is 99.9% uptime, your budget for errors is 0.1%. Error Budget = 100% − SLO Goal % Maintenance windows act as a "tax exemption," ensuring your planned work"

Service Level Maintenance Windows enable teams to define planned downtime periods in advance for activities such as database migrations, scheduled security patches, and infrastructure upgrades. During a scheduled window, bad events or outages are automatically suppressed from SLI calculations, protecting error budgets from being reduced by planned work and providing a more accurate view of unplanned reliability. Facet Service Level Compliance improves reliability measurement for distributed systems by breaking compliance data down by attributes such as region, user tier, version, or specific API endpoint. This replaces aggregate uptime reporting with more precise compliance results, helping identify and fix localized issues before they affect global SLOs. The error budget concept frames reliability as a currency where the error budget equals 100% minus the SLO goal percentage, and maintenance windows function like a tax exemption for planned work.

Read at New Relic