March 2023
Beginner to intermediate
266 pages
4h 30m
Chinese
Content preview from FinOps云成本优化
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158
｜
第
14
章
RI
和
CUD
策略
为了减少单个团队管理预留的需求，
FinOps
团队必须通过可视化的方式为每个团队购买
资源提供适用的折扣，以及总体的节省量。否则，团队为了省钱，将倾向于保留自己的使
用量。在集中式预留模型中，让分布式团队购买预留是危险的，因为最终可能会过度投入。
集中式预订模型并不一定能够减少单个团队的参与。
FinOps
团队应了解运营团队计划实
施的路线图，尤其是这些更改将影响云使用的情况。当预留可以更换或调整时，需要来
自各个团队的参与较少，因为
FinOps
团队可以在需要时更换预留。如果无法修改预留，
则应给予各个拥有资源的团队机会，使其能够对各自先前所做的承诺发表评论。让负责
的团队了解承诺，以及承诺对团队使用资源的意义，从而确保他们在规划将来对资源使
用的任何更改时，会考虑预留。
预留时机
我们听到了许多关于公司应该如何安排预留购买时间的意见。重要的是要了解过早承诺
与承诺太晚对公司的影响。如果你提前预留，你将支付预留费用，而不会有任何折扣。
如果你保留的使用量超过最终需要的量，你将支付整个期限（
1
年或
3
年）的预留费用，
这可能比按量付费更贵。但是，如果考虑的时间太长，你将为已有的使用量支付按量付
费的费用，并且会错过如果采用预留本来可以获得的节省金额。
为了帮助你更好地理解这一点，图
14-4
显示了云账单中的一些资源使用情况。如果你在
1
月购买了一年的预留，这些预留的资源在前
3
个月是闲置的，那么你就浪费了
RI
的
25%
（
3
个月
/12
个月）。当
4
月开始直到年底使用时，才会真正享有预留的价格优势。 ...
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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.
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.