SLA vs SLO vs SLI: Which One You Have to Build
SLA vs SLO comes down to audience, but the SLI underneath is the only layer you have to build, and its definition decides what the other two mean.
#sre
11 posts tagged "Sre".
Observability vs Monitoring: What Each One Answers
Observability is what your telemetry lets you ask, monitoring is the set of questions you already wrote down, and only one of them survives a dead host.
Incident Communication: Templates and a Cadence
Incident communication works when the first update ships in minutes. Here are the templates, the cadence by severity, and who posts each one.
MTTR and MTBF: Formulas, Targets and Pitfalls
MTTR is how long you stay broken and MTBF is how often you break. Both formulas are simple, and both hide a detection delay you control.
Golden Signals: The Four SRE Metrics That Matter
Golden signals are latency, traffic, errors and saturation - the four metrics Google's SRE book says to watch when you can only watch four.