Fundamentals of AWS

Learn about the core AWS's services like compute, storage, networking services and how they work with other services like Identity, Mobile, Routing, and Security. This module provides you with a good grasp an all you need to know of AWS services.
This module has been designed by three AWS Solution Certified Architects who have a combined industry experience of 17 years. We aim to provide you with just the right depth of knowledge you need to have.

Learn the A to Z of Amazon Web Services (AWS)

Fundamentally there are two types of storage:

1. Object-Based Storage
1. Block-Based Storage

## Simple Storage Service (S3) - Object-Based Storage
It provides developers and IT Teams with secure, durable, highly-scalable object storage. It is easy to use the simple web interface to store and retrieve any amount of data from anywhere on the web.

It is a place to store your files on AWS. and data is spread across multiple devices and facilities.




Think about S3 to store your photos or files. 

1. Object based storage
1. Unlimited storage
1. Files are stored in Buckets/Folders 
1. Names must be unique globally
1. Every time you have a successful upload you get a http 200 code back

S3 is primarily used for:
1. Store and Backup 
1. Application File Hosting
1. Media Hosting
1. Software Delivery
1. Storing AMI's and Snapshots



## Data consistency Model – S3

S3 data consistency model provides strong read after write consistency for PUT and DELETE requests of objects in the S3 bucket.

Objects consist of the following:

1. **Key** – this is simply the file name of the object.
1. **Value** – the data and is made up of a sequence of bytes.
1. **Versioning** – which version of the object is this
1. **MetaData** – Additional information about the data file you are storing.

Think, if you are storing a music track/song. This would have metadata like the information of the singer, the year it was released, the name of the album, etc.

### Sub resources 
1. **Access Control list** – this determines whether we can access the file on S3. This can be done at the file level or at the Bucket level.
1. **Torrent** – supports the Bit torrent protocol. 
1. Built for 99.99% availability of the S3 
1. Durability guarantee – 99.9%… (11.9s) 
1. Tiered storage Availability
1. Lifecycle management
1. Versioning
1. Encryption
1. Secure the data using Access control lists and Bucket policies 

### S3 – IA (Infrequently Accessed)

It is used for data that is accessed less frequently but requires rapid access when needed. This costs lesser than S3 but you are charged for the retrieval of the data. 

### S3 – RRS (Reduced Redundancy Storage)

It provides less durability with the same level of availability.

For example, this is about data you could potentially regenerate like a tax calculation or a payslip. This is cheaper. 
Suppose you create thumbnails for all your pictures. If you lose a thumbnail you could always regenerate it.



When deciding which storage to use think about the various storage options, their advantages vs disadvantages. Are you optimizing for durability, the frequency of retrieval, or availability? 


## Image comparing the various types of S3



Fundamentally there are two types of storage:

1. Object-Based Storage
1. Block-Based Storage

# Simple Storage Service (S3) - Object-Based Storage
It provides developers and IT Teams with secure, durable, highly-scalable object storage. It is easy to use the simple web interface to store and retrieve any amount of data from anywhere on the web.

It is a place to store your files on AWS. and data is spread across multiple devices and facilities.




Think about S3 to store your photos or files. 

1. Object based storage
1. Unlimited storage
1. Files are stored in Buckets/Folders 
1. Names must be unique globally
1. Every time you have a successful upload you get a http 200 code back

S3 is primarily used for:
1. Store and Backup 
1. Application File Hosting
1. Media Hosting
1. Software Delivery
1. Storing AMI's and Snapshots



# Data consistency Model – S3

S3 data consistency model provides strong read after write consistency for PUT and DELETE requests of objects in the S3 bucket.

Objects consist of the following:

1. **Key** – this is simply the file name of the object.
1. **Value** – the data and is made up of a sequence of bytes.
1. **Versioning** – which version of the object is this
1. **MetaData** – Additional information about the data file you are storing.

Think, if you are storing a music track/song. This would have metadata like the information of the singer, the year it was released, the name of the album, etc.

## Sub resources 
1. **Access Control list** – this determines whether we can access the file on S3. This can be done at the file level or at the Bucket level.
1. **Torrent** – supports the Bit torrent protocol. 
1. Built for 99.99% availability of the S3 
1. Durability guarantee – 99.9%… (11.9s) 
1. Tiered storage Availability
1. Lifecycle management
1. Versioning
1. Encryption
1. Secure the data using Access control lists and Bucket policies 

## S3 – IA (Infrequently Accessed)

It is used for data that is accessed less frequently but requires rapid access when needed. This costs lesser than S3 but you are charged for the retrieval of the data. 

## S3 – RRS (Reduced Redundancy Storage)

It provides less durability with the same level of availability.

For example, this is about data you could potentially regenerate like a tax calculation or a payslip. This is cheaper. 
Suppose you create thumbnails for all your pictures. If you lose a thumbnail you could always regenerate it.



When deciding which storage to use think about the various storage options, their advantages vs disadvantages. Are you optimizing for durability, the frequency of retrieval, or availability? 


# Image comparing the various types of S3



Learn about S3 - Simple Storage Service and its usage.
. 

S3 - Simple Storage Service

Learn about S3 - Simple Storage Service and its usage.
.

Before We Begin

Fundamental Building Blocks of AWS

AWS: Miscellaneous Services

AWS: Identity & Access Management (IAM)

AWS: Compute Offerings

AWS: Storage

AWS: Database Offerings

AWS: Routing

AWS: Virtual Private Cloud (VPC)

AWS: Application Services

AWS Well Architected Framework

Conclusion

S3 - Simple Storage Service

Simple Storage Service (S3) - Object-Based Storage

Data consistency Model – S3