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Code Issues Releases Wiki Activity

Updated WAF Limitations & S3 Storage Classes (#701)

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* Updated WAF Limitations & S3 Storage Classes

* Fixed typo in S3 Class
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Darpan Shah 2019-10-19 18:16:33 -04:00 committed by Corey Quinn
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@ -720,6 +720,8 @@ S3
- **S3 Reduced Redundancy and Infrequent Access:** Most people use the Standard storage class in S3, but there are other storage classes with lower cost:
- 🔸[Reduced Redundancy Storage (RRS)](https://aws.amazon.com/s3/reduced-redundancy/) has been [effectively deprecated](https://www.lastweekinaws.com/blog/s3-reduced-redundancy-storage-is-dead/), and has lower durability (99.99%, so just four nines) than standard S3. Note that it no longer participates in S3 price reductions, so it offers worse redundancy for more money than standard S3. As a result, there's no reason to use it.
- [Infrequent Access (IA)](https://aws.amazon.com/s3/storage-classes/#Infrequent_Access) lets you get cheaper storage in exchange for more expensive access. This is great for archives like logs you already processed, but might want to look at later. To get an idea of the cost savings when using Infrequent Access (IA), you can use this [S3 Infrequent Access Calculator](http://www.gulamshakir.com/apps/s3calc/index.html).
- [S3 - Intelligent Tiering](https://aws.amazon.com/about-aws/whats-new/2018/11/s3-intelligent-tiering/) storage class is designed to optimize costs by automatically moving data to the most cost-effective access tier, without performance impact or operational overhead.
- [S3 - One Zone - IA](https://aws.amazon.com/s3/storage-classes/#__) is for data that is accessed less frequently, but requires rapid access when needed. Unlike other S3 Storage Classes which store data in a minimum of three Availability Zones (AZs), S3 One Zone-IA stores data in a single AZ and costs 20% less than S3 Standard-IA.
- [Glacier](#glacier) is a third alternative discussed as a separate product.
- See [the comparison table](#storage-durability-availability-and-price).
- ⏱**Performance:** Maximizing S3 performance means improving overall throughput in terms of bandwidth and number of operations per second.
@ -2165,7 +2167,7 @@ WAF
### WAF Gotchas and Limitations
- As of February 2018, WAF is available in the US East (Northern Virginia), US West (Oregon and Northern California), Asia Pacific (Tokyo) and EU (Ireland) regions.
- As of May 2019, AWS WAF is available on Amazon CloudFront and in 12 commercial AWS regions: US East (N. Virginia), US East (Ohio), US West (Oregon), US West (N. California), EU (Ireland), EU (Frankfurt), EU (London), EU (Stockholm), Asia Pacific (Tokyo), Asia Pacific (Sydney), Asia Pacific (Singapore), and Asia Pacific (Seoul).
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