AWS ASSOCIATED NOTES

EBS

Amazon EBS allows you to create storage volumes and attach them to Amazon EC2 instances.

Main Features

Amazon EBS volumes are placed in a especific Availability Zone where they are automatically replicated to protect you from the failure of a single component.

Main Concepts

EBS Volume Types

SSD, General Purpose - GP2 (Up to 10k IOPS).
SSD, Provisioned IOPS - IO1 (+ than 10k IOPS).
HDD, Throughput Optimized - ST1 - frequently accessed workloads.
HDD, Cold - SC1 - less frequently accessed data.
HDD, Magnetic - Standard - cheap, infrequently accessed storage.

Exam notes

You cannot mount 1 EBS volume to multiple EC2 instances, instead use EFS.