March 2023
Beginner to intermediate
266 pages
4h 30m
Chinese
Content preview from FinOps云成本优化
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107
第 11 章
减少使用：使用率优化
在本章中，我们将讨论
FinOps
生命周期中最困难的部分之一。减少使用是困难的，而且
从整体环境上来说需要时间来实现。如果快速取胜是目标，你会发现购买预留实例
/
承
诺使用折扣（我们在第
13
章中讨论过）是降低成本的更快途径。与购买预订不同，预
订可以在没有任何工程行动的情况下带来显著的成本节省，减少使用需要工程师通过优
化工作来追求。这并不是说没有唾手可得的果实
—
只是说要找到它需要付出更多的努
力。
云服务提供商向你兜售这样一种观念：你应该为使用的东西付费。然而，更准确的说法是，
无论你是否使用这些资源，你都要为所提供的资源付费。在本章中，我们将看到部署在
云账户中的资源，要么没有被使用，要么没有被有效地使用。
云消费的冰冷现实
当你开始关注使用优化时，如果你听到以下对话内容，不要感到惊讶
:
FinOps
实践者 ：
“嘿，看起来你没有利用这里的这些实例。你真的需要吗 ?”
团队成员 ：
“哦，那些还在那里吗 ?”“我都忘了 ! 我现在就删除它们。”
这时候，你只想沮丧地用手拍额头。你很快就会意识到，如果你能够更早地进行这样的
对话，你可能会节省几个月的资源成本。
但实际情况并非如此简单。当你的服务在云上大规模运行时，几乎可以肯定，会存在不
曾被利用或被遗忘的资源。
当面对云计算中呈现的无限资源时，大多数工程师倾向于寻求更大的资源。做出这样的
选择通常可以避免他们在半夜被呼叫。
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