EC2 Instance Types and Family

Instances Types

1. On-Demand Instances

2. Reserved Instances

3. Spot Instances

4. Dedicated Host

   1. On-Demand Instance

   • Fixed Price (Hourly)

   • Pay for what you have used

   • No commitment

   • No Prior Payment

   • No predictable usage

2. Reserved Instances

• Long Term Commitment

• Prior Payment(Full, Partial) 1 or 3 Years

• 75% discount on hourly price

• Predictable usage

3. Spot Instances

• Bidding

• Auctioning

• Huge Capacity for a cheaper price

• Application with start and end times

  4. Dedicated Instances

• If any customer needs a diedcated physical machine Licensed software Dedicated host is much costlier than others

Note: AWS cloud minimum billing period is 1 hour

9 am 10 am ===> Used for 5 mins

11 am 12 pm ===> Used for 5 mins

AWS will consider this as 2 hours

EC2 instance states

1. Launch

2. Running (Bill)

3. Stop (No Bill)

4. Reboot

5. Terminate (Killing)

EC2 Families

EC2 has several Families

t1 , t2, t3, t4g, al, c1, c3, c4

Note: AWS Account is Free for 1 year 750 Hours / Month Free

General Instances

• For General Purpose

Memory Instance:

• if you need more memory

CPU instances:

• More CPU

Storage instances:

• More storage

GPU Instances:

• Graphics, Havey Machines

general instances

• t2.nano = 0.5GB RAM

• t2.micro = 1 GB RAM

• t2.small = 2 GB RAM

• t2.medium = 4 GB RAM

• t2.large = 8 GB RAM

• t2.xlarge = 16 GB RAM