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Wednesday, February 15, 2012

Part 4:(Amazon ELB Series) Elastic Load Balancing Benefits

Benefit 1:Application Scalability

  • Handles traffic growth automatically
  • Add new Amazon EC2 instances to your ELB without interrupting your application
  • Remove existing Web/App EC2 instances from the ELB without shutting down the whole application
  • Load balance requests to healthy Web/App EC2 instances



Benefit 2:Application Availability

  • No Single Point of Failure for AWS ELB
  • Load balance requests to healthy Web/App EC2 instances
  • Load balancing combined with AWS Auto Scaling will improve application availability
  • Leverage AWS AZ’s with ELB for High availability



Benefit 3:Cost Flexibility and savings

  • No upfront commitments
  • Pay only for what you use
  • Provides better cost savings compared to running farms of HAProxy/NginX EC2 in Load Balancing layer 

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