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Auto-Scaling IT

The AWS Auto –Scaling function helps you to get the right sized IT capacity even if the actual data traffic is high or the opposite, the number of transactions are actually low. You always have the appropriate computing resources, just the capacity you need, just when you need it.

OPERATION BASED ON POLICIES

Auto-Scaling provides the proper number of EC2 (virtual compute) instances in line with the application load. By defining rules, one can add auto-Scaling Groups to his applications, and  define conditions to set the minimum and maximum number of instances. Based on the given rules, AWS will manage theinstances for the application, running neither more nor less at a time than what is defined in the rules.

ADAPTIVE

With the help of the autoscaling rules, you can define and control that AWS will launch the right capacity of compute resources to your business applications all the time, depending on the end user demand. The scaling can happen manually, based on rules, or in a scheduled manner. Automatic scaling has lifecycle policies, which begins with the installation of EC2 Instance and ends with manual or automatic termination (shutdown). In case of defining rules, AWS automatically launches or stops instances in order to serve efficiently and cost-optimized way the increased or decreased load demands.

THE COMPONENTS OF THE AWS AUTO-SCALING

  • groups: minimum, expected and maximum number of instances
  • configuration template
  • scaling plan, when and how to scale

THE ADVANTAGES OF AUTO-SCALING SERVICE

  • high level fault tolerance: in case of an unhealthy EC2 Instance (Instance or application failure), AWS automatically moves it to quarantine and replace it with a healthy one
  • higher level of availability: the application always has as many computing nodes running as the current traffic load requires
  • more effective cost management: Within Auto-Scaling service you are charged only after the capacity is used, based on actual usage

THE AWS AUTO-SCALING SERVICE IS FREE OF CHARGE!

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