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AWS 宣佈能 auto-scale 的 Aurora Serverless MySQL 進入 GA:「Aurora Serverless MySQL Generally Available」:

不過目前開放的區域有限:

Aurora Serverless for Aurora MySQL is available now in US East (N. Virginia), US East (Ohio), US West (Oregon), Europe (Ireland).

以秒計費,但低消是 5 分鐘:

You pay a flat rate per second of ACU usage, with a minimum of 5 minutes of usage each time the database is activated.

us-east-1 的價錢來看,每個 ACU 是 USD$0.06/hour,而每個 ACU 大約是 standard instance 的價錢:

1 ACU has approximately 2 GB of memory with corresponding CPU and networking, similar to what is used in Aurora Standard instances.

但這沒看懂,是 db.t2.small 還是 db.t2.medium?另外比較是全速還是 small 的 20% 或 medium 的 40%?這部份也許還要再問看看才知道...

storage 與 I/O 的費用則是相同,倒是不用比較這塊... 再來不知道有沒有推出 Reserved ACU 的計畫,光是一年付清就差蠻多的。

要不要換過去其實還是要看看使用的量,以及可以接受的成本來決定...

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