amazon-web-services - Amazon S3 存储类型的差异；标准、减少冗余和冰川？什么是云锋？

Question

考虑使用 PHP 在我的网站上启动图像上传服务，用户可以在其中上传他们的照片。已找到Amazon S3 http://aws.amazon.com/s3/pricing/我认为这是存储图片的一个很好的解决方案。但是我对不同的存储类型感到困惑

标准存储
减少冗余存储
冰川储存

曾尝试在网站上阅读，但并没有变得更聪明。是我想要访问数据的频率吗？如果您不想经常访问数据并且减少冗余与标准相同但没有安全连接，Glacier 似乎只是用于备份？谁能简要解释一下它们之间的区别以及最适合我的(用户可以上传照片的网站/服务)。

还读到人们推荐将 CloudFront 与 Amazon S3 结合使用 http://aws.amazon.com/cloudfront/ .到底有什么好处呢？谁能解释为什么？这里也是一样的，已经尝试在亚马逊上阅读但是

give developers and businesses an easy way to distribute content to end users with low latency, high data transfer speeds, and no minimum usage commitments.

即使听起来不错，也不能说明它是什么。

Answer 1

http://aws.amazon.com/about-aws/whats-new/2010/05/19/announcing-amazon-s3-reduced-redundancy-storage/

Reduced Redundancy Storage (RRS) is a new storage option within Amazon S3 that enables customers to reduce their costs by storing non-critical, reproducible data at lower levels of redundancy than Amazon S3’s standard storage. It provides a cost-effective, highly available solution for distributing or sharing content that is durably stored elsewhere

冰川:http://aws.amazon.com/glacier/

Amazon Glacier is a secure, durable, and extremely low-cost storage service for data archiving and online backup

Cloudfront 是一个 CDN:http://aws.amazon.com/cloudfront/

Amazon CloudFront is a content delivery web service. It integrates with other Amazon Web Services products to give developers and businesses an easy way to distribute content to end users with low latency, high data transfer speeds, and no minimum usage commitments.

将其视为一个地理上分散的网络缓存，它保存来自 s3 的图像副本，因此可以根据离最近的 Cloudfront 分布最近的位置将它们提供给客户。