What is an error budget, and how does it help SRE teams make decisions about reliability versus feature development?

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An error budget is the maximum amount of unreliability your service can have while still meeting its SLO. It is calculated as 1 minus the SLO target. If your SLO is 99.9% availability over 30 days, your error budget is 0.1%, which translates to approximately 43.2 minutes of…