Elastic Compute Cloud (EC2)

1. Amazon Ec2 provides scalable computing capacity in AWS Cloud.
2. You can use Amazon EC2 to launch as many as or as few virtual servers as you need and configure security and networking and manage storage.
3. Amazon EC2 enables you to scale up or scale down the instance.
4. Amazon EC2 is having two storage options
5. The Root volume of Amazon server has two types of Storage.
6. Elastic Blob Storage(EBS) and Instance Store.
7. Root Volume is where your OS is installed.
8. EBS is installed somewhere away from physical store and in case of Instance Store the memory is taken from host memory.
9. EBS is slow as compare to that of Instance Store.
10. And Instance store is fast as that of EBS.
11. Pre- Configured templates are available known as Amazon Machine Image.
12. By default ,when you create an EC2 account with amazon your account is limited to a Maximum as 20 instances per EC2 Region with two default high I/O instances.

There are 7 Types of EC2 Instances:-

1. General Purpose Instance.
2. Compute Optimized Instance.
3. Memory Optimized Instance.
4. Storage Optimized Instance.
5. Accelerated Computing Instance.
6. High Memory Instance.
7. Previous Generation Instance.