AWS Storage Options

List of Topics

1) Types of AWS supported storage
2) Short Description About S3, EBS, EFS and Instance Store

3) Other Storage Options

1) Types of AWS Supported storage

EC2 provides the following storage options which can be used alone or in combination with othere based on your requirement. Below is the list of types of EC2 storage.

a) S3
b) EBS
c) EFS
d) Instance Store

3) Short Description About S3, EBS, EFS and Instance Store

About S3 

a) It is an object level storage. 
b) To be used for WORM operation (write once read many times) operation.

c) For writing continously and not updating S3 is better eg :log files

d) No need to plan for sizing as it is an unlimited size storage.

e) Not suitable for OS and database

f) What it is mentioned here is a small description about S3. For more information about S3 please check S3 Post.

About EBS

a) EBS is a Block level storage for EC2 Instances.
b) It is persistent [even if the instance is stopped] data will be available
c) High performance in terms of read and write.

d) AWS replicates the data with in AZ  for high availablity.

e) EBS volume can be mounted to EC2 only in same AZ and it can be mounted to only one EC2

f) What it is mentioned here is a small description about EBS.

About EFS

a) Elastic File System is latest added storage to AWS. It uses Nfs v4. 

b) It is a Fully managed service by AWS. Based on SSD's.

c) It is highly durable and available. While creating EFS it will get replicated across AZ's.

d) It is a file level storage that can be mounted to N number of EC2's.

e) Can able to mount to on premises in data center servers also.

f) No sizing is required it automatically grows and shrinks based on size of content

g) We need to use DNS name to mount the EFS to EC2 and can be accessible only within VPC

h) It provides, read after write consistency.

i) No Minimum price and it is charged 0.30/GB-month

h) What it is mentioned here is a small description about EFS we will discuss about EFS in detail in a separate post

4) Other Storage Options

a) Instance Storage

b) Storage gateway

c) Snowball

d) Amazon CloudFront CDN