This course teaches the theory of Service Level Objectives (SLOs), a principled way of describing and measuring the desired reliability of a service. Upon completion, learners should be able to apply these principles to develop the first SLOs for services they are familiar with in their own organizations.
Learners will also learn how to use Service Level Indicators (SLIs) to quantify reliability and Error Budgets to drive business decisions around engineering for greater reliability. The learner will understand the components of a meaningful SLI and walk through the process of developing SLIs and SLOs for an example service.
課程信息
4.3
14 個評分
您將學到的內容有
How to make systems reliable
Understanding SLIs, SLOs and SLAs
Quantifying risks to and consequences of SLOs
教學大綱 - 您將從這門課程中學到什麼
週
1完成時間為 27 分鐘
Introduction to SRE
This module is intended to bring you up to speed on the concepts underpinning SRE, CRE, and SLOs. If you're already familiar with these concepts, you may still find new information and perspectives in this module, but it is not necessary to complete it.
9 個視頻 （總計 15 分鐘）, 1 個測驗
9 個視頻
Introduction15
Intro10
CRE's Three Reliability Principles3分鐘
Reliability in the Cloud3分鐘
How SLOs help your business make decisions1分鐘
How SLOs help you build features faster1分鐘
How SLOs help you balance operational and project work1分鐘
Making SLOs work for your organization59
1 個練習
DevOps/SRE1分鐘
完成時間為 1 小時
Targeting Reliability
In this module we’re going to talk about how you measure the desired reliability of a service. We will address what to consider when setting SLOs for your application within your organization. We'll look at the three principles we use to measure the desired reliability of a service: figuring out what you want to promise and to whom, figuring out the metrics you care about that make your service reliability “good", and finally, deciding how much reliability is good enough.
7 個視頻 （總計 14 分鐘）, 4 個測驗
7 個視頻
SLOs vs SLAs2分鐘
The happiness test2分鐘
How do we measure reliability?3分鐘
Edge cases2分鐘
100% is the wrong target1分鐘
Iterating1分鐘
4 個練習
A working service5分鐘
SLOs and SLAs7分鐘
Reliability and iterating1分鐘
Targeting Reliability Assessment7分鐘
完成時間為 1 小時
Operating for Reliability
In this module, we’ll start by introducing a mechanism for quantifying unreliability using something called an error budget. We'll show how error budgets help you decide when to focus on making a service more reliable. And then we'll learn about some of the engineering and operational improvements that can help you do that.
7 個視頻 （總計 19 分鐘）, 3 個測驗
7 個視頻
Error budgets3分鐘
Everything is a trade-off3分鐘
Error budgets: advanced concepts2分鐘
Axes of improvement4分鐘
Operational approach to increasing reliability2分鐘
Module summary50
3 個練習
Error budgets5分鐘
Increasing reliability3分鐘
Operating for Reliability Assessment5分鐘
週
2完成時間為 1 小時
Choosing a Good SLI
In this module we will start off by taking a look at some characteristics of monitoring metrics that can make them useful as SLIs and contrast these against other metrics that are less useful. Because the choice of where to measure an SLI is a key variable, we'll cover the five main ways you can measure an SLI and compare their pros and cons.
14 個視頻 （總計 41 分鐘）, 3 個測驗
14 個視頻
Introduction1分鐘
User happiness in metric form1分鐘
The properties of good SLI metrics4分鐘
Ways of measuring SLIs4分鐘
The SLI menu2分鐘
The SLI equation1分鐘
Request / Response SLIs5分鐘
Data processing SLIs6分鐘
"But my system is really complex!"2分鐘
Managing complexity with aggregation2分鐘
Managing complexity with bucketing3分鐘
Achieveable SLOs1分鐘
Aspirational SLOs1分鐘
Continuous improvement1分鐘
3 個練習
Measuring happiness1分鐘
Commonly used SLIs2分鐘
Correctness and Coverage2分鐘
週
3完成時間為 5 小時
Developing SLOs and SLIs
In this module, we'll start off with an overview of our four step process for developing SLOs and SLIs for a user journey. We'll introduce the fictional company that created our example mobile game, the infrastructure that we'll be working with, and the simple user journey we'll be applying the four step process to.
7 個視頻 （總計 18 分鐘）, 4 個測驗
7 個視頻
The 4 step process1分鐘
Our example game1分鐘
Loading the profile page1分鐘
Refining SLI specifications4分鐘
Looking for observability gaps2分鐘
Failure modes4分鐘
2 個練習
Postmortem!15分鐘
Setting Achievable SLO targets15分鐘
週
4完成時間為 4 小時
Quantifying Risks to SLOs
In this module we'll be taking a critical look at the availability risks for our example service. We want to answer the question: "are our SLO targets and error budgets realistic?"
4 個視頻 （總計 20 分鐘）, 2 個測驗
4 個視頻
Introduction1分鐘
Is your error budget realistic?3分鐘
Modeling risks in our spreadsheet5分鐘
Analyzing risk9分鐘
完成時間為 1 小時
Consequences of SLO Misses
In this module, we'll cover best practices for documenting your SLOs, the rationale behind a formal error budget policy and how best to create one and finally, we'll look at an example error budget policy in order to understand the trade-offs and incentives that play out during negotiations when trying to write an error budget policy.
9 個視頻 （總計 21 分鐘）, 3 個測驗
9 個視頻
No surprises2分鐘
A dashboard example1分鐘
Why an error budget policy?2分鐘
Fundamentals of an error budget policy3分鐘
How to draft an error budget policy3分鐘
Example policy thresholds3分鐘
A hypothetical policy scenario3分鐘
Course conclusion and video wrap up47
3 個練習
Error budget policies1分鐘
Error budget policy -- considerations2分鐘
Consequences of SLO Misses1分鐘
關於 Google 云端平台
We help millions of organizations empower their employees, serve their customers, and build what’s next for their businesses with innovative technology created in—and for—the cloud. Our products are engineered for security, reliability, and scalability, running the full stack from infrastructure to applications to devices and hardware. Our teams are dedicated to helping customers apply our technologies to create success.
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