March 2023
Beginner to intermediate
266 pages
4h 30m
Chinese
Content preview from FinOps云成本优化
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125
第 12 章
减少支出：费率优化
优化使用是指减少资源使用以避免成本浪费，而费率优化是指为持续使用资源支付更少
的费用。
到目前为止，你知道各个云服务提供商提供的服务是不同的。不同的收费方式，不同的
时间计费账单，以及一系列的支付结构和承诺，使得每个供应商都为客户带来了各种各
样的财务状况。在本章中，我们将讨论一些定价方面的选择，预留实例
(RI)
和承诺使用
的折扣（
CUD
）是相当复杂的，所以我们将把它们留到第
13
章。
计算资源定价
根据云服务提供商和你使用的资源类型，可以有多种支付方式。不同的云服务供应商对
于类似的定价也使用不同的术语。首先，让我们快速看一下表
12-1
中的三大提供商。
表12-1 比较三大云服务运营商提供的预留选项
AWS Google Azure
刊例价 按需 按需 现付
现货价 现货 抢占式 低优先级
持续使用折扣 无 持续使用折扣 无
预留 预留实例
/
节省计划 承诺使用折扣 预留
VM
实例
批量折扣 批量折扣 批量折扣 批量折扣
按需
当你按需运行一个普通的资源时，如果没有任何预先承诺（如预留实例），那么你会被
收取列表价格或按需费率。这通常是你为资源支付的最高价格。它很灵活，因为你可以
在任何时候停止使用它而不受惩罚。
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