EC2 is Amazon's Elastic Compute Cloud that provides scalable compute capacity in the cloud using virtual machines. EC2 allows users to set up virtual machines in different regions and availability zones around the world. There are various types of EC2 instances including On-Demand (pay by the hour), Spot Instances (bid-based), and Reserved Instances (with 1-3 year terms). EC2 supports many different instance types and storage options like EBS volumes with various performance levels. Key components for using EC2 include AMIs, security groups, VPCs, subnets, tags, and key pairs.

1. AWS Training
Track - 2 -
EC2
A Techmozart - Arun Raj T.M. Presentation

2. What is an EC2?
• Full Form – Elastic Compute Cloud
• Definition - Amazon Elastic Compute Cloud (Amazon
EC2) is a web service that provides resizable
compute capacity in the cloud. It is designed to
make web-scale computing easier for developers.
• What is it really? – A Virtual Machine in the Cloud
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A Techmozart - Arun Raj T.M. Presentation

3. Where do I
set-up?
Region
Physical locations around the World
where AWS clusters Data Centers.
Each Region consists of multiple,
isolated, and physically separate
AZ's within a geographic area.
20+ AWS regions total
Mumbai is a region
Availability Zone (AZ)
An Availability Zone (AZ) is one or
more discrete data centers with
redundant power, networking, and
connectivity in an AWS Region.
20Kms apart per Region.
60+ AZs
A Techmozart - Arun Raj T.M. Presentation

4. Types of EC2
On-Demand – Pay fixed rate by the hour
(or by the sec). No commitment.
Spot Instances – On a bid – For flexible
Apps
Reserved Instances –
Capacity Reservation.
1- or 3-year term
•Standard Reserved Instances
•Convertible Reserved Instances
•Scheduled Reserved Instances
Dedicated Hosts – Dedicated Physical EC2
server -can use own licenses
A Techmozart - Arun Raj T.M. Presentation

5. Instance Types
FIGHT DR MC PXZ AU
A Techmozart - Arun Raj T.M. Presentation

6. EBS Types
General Purpose SSD – Balanced Pricing - Most
Workloads
Provisioned IOPS SSD – Highest performance –
Databases/mission critical apps
Throughput optimized SSD – Low cost – frequent
access – Big data and Warehousing
Cold HDD – lowest cost – less frequent access – File
Servers
EBS Magnetic – Previous Generation – Workloads
where there is infrequent access of data
A Techmozart - Arun Raj T.M. Presentation

7. Other Parts/components
we will need to
understand
AMI – Amazon Machine Image – OS install ISO with
properties – EBS and Instance Store
Security Groups – Virtual Firewall – Stateful
VPC – Virtual Private Cloud – virtual network dedicated
to your AWS account.
Subnet – range of IP addresses in your VPC
Tags – For auditing and rules.
Key Pair – Used for accessing the EC2 instances.
A Techmozart - Arun Raj T.M. Presentation

8. Other Discussions during
Practical Session
ENI, EN & EFA– Elastic Network Interface, Elastic Network
(ENA & EN –VF) & Elastic Fabric Adapter
EBS Snapshots – Snapshots of volumes.
Volume Encryption – Root Volume can be encrypted during
creation of EC2 or after creating snapshot and copy.
CloudWatch – Performance monitoring – Default 5 mins –
Detailed can be set for every 1 min.
Userdata – Bootstrap a machine while startup. - #!/bin/bash
Metadata – Data about your instance -
http://169.254.169.254/latest/meta-data/
A Techmozart - Arun Raj T.M. Presentation