EC2 Instance Types

• Refer Here
• Instances Types are divided into Families
  • They Share same Hardware
  • Instance Families also have Generations
• Instance Types are Categorized into Purposes
  • General Purpose:
    • CPU to RAM Ratio is balanced
  • Compute Optimized:
    • High CPU to RAM
  • Memory Optimized:
    • High RAM to CPU
  • Storage Optimized:
    • Hard disk related optimizations
  • Accelerated Compute:
    • Parallel Processors

EC2 Pricing Models

• Use Amazon Pricing Calculator
• On Demand:
  • Create a machine at any point and delete the machine on demand
  • Billing:
    • Hourly: unit of billing is 1 hour
    • Per-Second: unit of billing is Second
  • EC2 Billing
    • Only when your instance is Running
  • Disk Billings:
    • This billings continue irrespective of instance state
  • This is the Costliest Model of Amazon.
• Reserved Instances:
  • Users give a commitment to Amazon for 1 or 3 years
  • They can pay the bills of EC2 machine with Commitment
    • All upfront (most discounted price)
    • Partial Upfront
    • Pay as you go (monthly bills)
  • Ec2 machines are charged for complete hours.
• Spot Instances:
  • Users can bid for instances
• Scheduled Instances:
  • Users can create a schedule for creating and deleting EC2 Machines
• Savings Plan:
  • Give a commitment on Cost.
  • I will be using ec2 machines of work 10$/hour for next one year

Auto Scaling

• Basic Architecture

• Problem with load increase

• AWS Cloud Solution