AWS 推出 Scheduled Reserved Instances

Amazon EC2 提供的新玩法,Scheduled Reserved Instances (Scheduled RI):「New – Scheduled Reserved Instances」。

Scheduled RI 可以指定買「某個特定時段」一年,像是每天的凌晨零點到八點之類的,拿來跑 report 這類需求。不過不同於 Standard RI 是不需要另外設定就會自動生效,Scheduled RI 需要開機器時指定才會使用。

不過只會省一些,而不像 Standard RI 可以省的量:

The new Scheduled Reserved Instance model allows you to reserve instances for predefined blocks of time on a recurring basis for a one-year term, with prices that are generally 5 to 10% lower than the equivalent On-Demand rates.


This feature is available today in the US East (Northern Virginia), US West (Oregon), and Europe (Ireland) regions, with support for the C3, C4, M4, and R3 instance types.

就成本來看,應該是屬於最後 optimize 的項目,而不是一開始的最佳化...

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