Little Known Ways to Better Use Your Error Budgets
One of the most versatile and foundational SRE tools is the SLO, or service level objective. The SLO is a threshold set for key reliability metrics. When incidents push the metric over the threshold, a response launches to prevent further damage. Conversely, as long as you meet your SLO, you can continue to ship new code. The space you have before you breach this threshold is the error budget.