AWS Classroom Series – 25/Nov/2020

EC2 Instance types

• When we launch ec2 instance we need
  • Certain Virtual CPUs
  • Certain amount of RAM
  • Certain Disk Size
  • Operating System
• In AWS we can specify number of CPUs and RAM Size by using Instance Type. With Instance Type you also get
  • Network Speed
  • Disk Types supported
• Instance Family is a hardware specification which allows to create ec2 instances
• Refer Here for instance types
• Refer Here for hardware specification of each family
• Instance Types are Categorized by use cases
  • General Purpose:
    • This provides balance of compute, memory & Networking Resources
    • This has many instance Families
    • Ideal for low demand web/app servers, development or testing environments
  • Compute Optimized
    • This provides high cpu to memory ratio
    • Used for web servers, app servers in Production
  • Memory Optimized
    • This provides high memory to cpu ratio
    • This is used in Cache Servers
  • Storage Optimized
    • This provides instances which are storage optimized that require high disk read/write speeds
    • High performance databases
  • Accelarated Computing
    • This use hardware Accelarators
      • GPU Instances
      • FPGA instances
      • AWS Inferentia
• AWS EC2 has two kinds of disks
  • EBS
  • Instance Store
• EC2 cost will not include EBS Cost
• So lets create a memory optimized windows server
• Try creating one General purpose linux server