March 2023
Beginner to intermediate
266 pages
4h 30m
Chinese
Content preview from FinOps云成本优化
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160
｜
第
14
章
RI
和
CUD
策略
甚至可能是
"
无预付
"
类型的
RI
）。要在每一个方面进行走（
Walk
）和跑（
Run
），都需
要跨职能、跨团队的协作和大量的培训。
最好的方法是为两者设定保守的目标，并从刚开始就并行执行。因为规模可以调整，所
以云计算支出不会被浪费
—
前提是，为两者设定保守目标，并从刚开始就并行执行。
尤其是开始迁移或开发新的应用程序时，云使用量通常会随着时间的推移而增长，此时
可以尝试先使用预留覆盖一半的基础设施。
开始时，你应该设置一个小的预留覆盖率目标，可能是
25%~30%
，并保留部分云资源，
从而尽早实现节省。随着你减少浪费，你新购买的预留，将适用于剩余使用量的更大比例。
请记住，实例大小灵活性（
Instance Size Flexibility,ISF
）、
AWS
的可转换
RI
和
Azure
的
可取消
RI
等功能，为你提供了优化基础设施使用的空间，即使你已承诺预留也是如此。
由于你可以衡量账户中的浪费量，因此你可以重新评估预留范围目标，并在理想情况下
随着时间的推移而增加。在走（
Walk
）阶段，你将定期购买
RI
，而研发团队会定期清理
未使用的资源，并调整未充分利用的资源。当我们进入基于指标驱动的成本优化时，跑
（
Run
）阶段就来了（第
16
章 ）。
构建你的战略
无论你使用哪个云服务提供商，预留（
Reservations
）和承诺（
Commitments
）的目标都
是尽可能节省成本。在制定预订策略之前，有几件事需要考虑。你的公司特点将影响你
的预留策略。你还需要考虑你对云服务提供商的承诺程度，你可能需要在购买决策中考 ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.