March 2023
Beginner to intermediate
266 pages
4h 30m
Chinese
Content preview from FinOps云成本优化
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GCP
｜
143
然而，预留实例和节省计划之间有一些主要的区别 ：
●
两种节省计划类型都提供了更灵活的方式应用折扣，消除了考虑租户、操作系统、
实例家族或实例大小的担忧。最重要的是，计算型储存计划适用于所有区域，这
将显著提高使用的覆盖。
●
当使用预留实例时，你购买的是大量与你账户中的实例匹配的预订。节省计划是
按每小时的固定花费购买的。重要的是，你承诺的消费金额是折扣后的。如果你
正在运行每小时
100
美元的按需类
EC2
，而一个节省计划提供
50%
的折扣，则你
需要购买一个每小时
50
美元的节省计划。
●
与预留实例不同，节省计划支持对
AWS Fargate
的使用提供折扣。这是
AWS
首次
提供跨多个服务产品使用折扣。
虽然本章中的许多预留实例技术将帮助你评估节省计划决策，但现在要为节省计划制定
具体的最佳实践还为时过早。这就是为什么我们需要
FinOps
基金会的最佳实践 ：持续
讨论，制定最新的最佳实践，并将知识分享给所有从业者。
GCP
GCP
的基础设施和服务与其他云服务提供商不同，它有两种独特的计费结构来简化云成本。
在了解承诺使用折扣如何运作之前，让我们先看看
GCP
的用户透明的方案
—
持续使用
折扣（
SUD
）。持续使用折扣本质上是一种基于时间的批量折扣。你可能还记得，在第
12
章中，折扣是根据每个月运行计算实例的时间来应用的。当你的计算实例按每月的特
定百分比时间运行时，收取的费用会减少。这个模型的伟大之处在于它不需要任何努力。
只要根据需要运行服务器，在适当的时候会自动应用更便宜的价格。该计划的唯一缺点
是
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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.
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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.