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Amazon S3 推出新的等級 One Zone-IA

Amazon S3 有 RRS,提供給那些掉了可以重新產生的資料使用 (像是縮圖);另外也有 IA,提供給不常存取的資料使用。現在推出的這個等級結合了兩者,使得價錢更低:「Amazon S3 Update: New Storage Class and General Availability of S3 Select」。

New S3 One Zone-IA Storage Class – This new storage class is 20% less expensive than the existing Standard-IA storage class. It is designed to be used to store data that does not need the extra level of protection provided by geographic redundancy.

Amazon S3 推出新的種類:Standard - Infrequent Access Storage

Amazon S3 推出了新的種類:「AWS Storage Update – New Lower Cost S3 Storage Option & Glacier Price Reduction」。

原先只有「Standard」、「Reduced Redundancy Storage」以及「Glacier Storage」三種,現在多了一種「Standard - Infrequent Access Storage」。


$0.0125 / gigabyte / month (one and one-quarter US pennies), with a 30 day minimum storage duration for billing, and a $0.01 / gigabyte charge for retrieval (in addition to the usual data transfer and request charges).

拉資料的費用相當的貴啊一個月拉兩次就超過 Standard Storage 的價錢了,所以這個「Infrequent」的要求其實頗嚴苛的...

另外空間的部份以 128KB 為最小單位在計價的:

Further, for billing purposes, objects that are smaller than 128 kilobytes are charged for 128 kilobytes of storage.

所以綜合起來看,Infrequent Access Storage 的設計上是拿來堆資料備份,但希望拉資料時很快就可以拉出來。其實就是 Google Cloud StorageNearline 的想法,一樣有存取另外收費的項目。不過 Nearline 有說平均的 latency 是三秒:

但 IA 好像是跟 Standard 相同等級?至少文章裡沒有提到...