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Stub out section on EFS.

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Joshua Levy 2016-08-31 22:17:37 -07:00
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README.md
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@ -606,16 +606,16 @@ S3
### Storage Durability, Availability, and Price
As an illustration of comparative features and price, the table below gives S3 Standard, RRS, IA, in comparison with [Glacier](#glacier), [EBS](#ebs), and EFS, using Virginia region as of August 2016. (Sources: S3 [pricing](https://aws.amazon.com/s3/pricing/), [SLA](https://aws.amazon.com/s3/sla/), [FAQ](https://aws.amazon.com/s3/faqs/), [RRS info](https://aws.amazon.com/s3/reduced-redundancy/), [Glacier pricing](https://aws.amazon.com/glacier/pricing/), [EBS pricing](https://aws.amazon.com/ebs/pricing/), [EFS pricing](https://aws.amazon.com/efs/pricing/), [EC2 SLA](https://aws.amazon.com/ec2/sla/).)
As an illustration of comparative features and price, the table below gives S3 Standard, RRS, IA, in comparison with [Glacier](#glacier), [EBS](#ebs), and [EFS](#efs), using Virginia region as of August 2016. (Sources: S3 [pricing](https://aws.amazon.com/s3/pricing/), [SLA](https://aws.amazon.com/s3/sla/), [FAQ](https://aws.amazon.com/s3/faqs/), [RRS info](https://aws.amazon.com/s3/reduced-redundancy/), [Glacier pricing](https://aws.amazon.com/glacier/pricing/), [EBS pricing](https://aws.amazon.com/ebs/pricing/), [EFS pricing](https://aws.amazon.com/efs/pricing/), [EC2 SLA](https://aws.amazon.com/ec2/sla/).)
| | Durability (per year) | Availability “designed” | Availability SLA | Storage (per TB per month) | GET or retrieve (per million) | Write or archive (per million) |
|-------------|-----------------------|-------------------------|------------------|----------------------------|-------------------------------|--------------------------------|
| Glacier | Eleven 9s | Sloooow | – | $7 | $50 | $50 |
| S3 IA | Eleven 9s | 99.9% | 99% | $12.50 | $1 | $10 |
| S3 RRS | 99.99% | 99.99% | 99.9% | $24 | $0.40 | $5 |
| S3 Standard | Eleven 9s | 99.99% | 99.9% | $30 | $0.40 | $5 |
| EBS | 99.8% | Unstated | 99.95% | $100 and up | | |
| EFS | “High” | “High” | – | $300 | | |
|-----------------|-----------------------|-------------------------|------------------|----------------------------|-------------------------------|--------------------------------|
| **Glacier** | Eleven 9s | Sloooow | – | $7 | $50 | $50 |
| **S3 IA** | Eleven 9s | 99.9% | 99% | $12.50 | $1 | $10 |
| **S3 RRS** | 99.99% | 99.99% | 99.9% | $24 | $0.40 | $5 |
| **S3 Standard** | Eleven 9s | 99.99% | 99.9% | $30 | $0.40 | $5 |
| **EBS** | 99.8% | Unstated | 99.95% | $100 and up | | |
| **EFS** | “High” | “High” | – | $300 | | |
EC2
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@ -762,6 +762,22 @@ EBS
- 🔸EBS has an [**SLA**](http://aws.amazon.com/ec2/sla/) with **99.95%** uptime. See notes on high availability below.
- ❗EBS volumes have a [**volume type**](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/EBSVolumeTypes.html) indicating the physical storage type. The types called “standard” (**st1** or **sc1**) actually old spinning-platter disks, which deliver only hundreds of IOPS — not what you want unless you’re really trying to cut costs. Modern SSD-based **gp2** or **io1** are typically the options you want.
EFS
---
- 📒 [Homepage](https://aws.amazon.com/efs/) ∙ [User guide](http://docs.aws.amazon.com/efs/latest/ug) ∙ [FAQ](https://aws.amazon.com/efs/faq/) ∙ [Pricing](https://aws.amazon.com/efs/pricing/)
### EFS Basics
- 🐥**EFS** is Amazon’s new (general release 2016) network filesystem.
- It is similar to [EBS](#ebs) in that it is a network-attached drive, but it [differs in important ways](https://aws.amazon.com/efs/details/):
- It can be attached to many instances (up to thousands), when EBS can only be attached to one drive. It does this via [NFSv4](https://en.wikipedia.org/wiki/Network_File_System).
- It can offers higher thoughput (multiple gigabytes per second), higher latency, and likely better durability and availability than EBS (see [the comparison table](#storage-durability-availability-and-price)).
- It cannot be used as a boot volume or in certain other ways EBS can.
- It costs much more than EBS (up to three times as much).
🚧 [*Please help expand this incomplete section.*](CONTRIBUTING.md)
Load Balancers
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