How Does SRE Work?

Why SRE? - Problem

a. Average down time per failure is based on operational considerations and costs

Illustration:


average down time per failure of 0.01 hr


b. Compute failure intensity objective (FIO):
FIO = (1 - A) / (A x d) A = availability

• d = average down time per failure
Illustration:

• FIO = 1.01 failures / hr

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