Auto Scaling

h1. Auto Scaling

h2. Background

For those who aren't familiar with Auto Scaling, it is an automation service Amazon provides as part of their cloud offering. It provides features to manage a running pool of servers, including the capability to replace failed instances and automatically grow and shrink the size of the pool. For a more thorough description, please see the "Amazon Documentation":http://docs.amazonwebservices.com/AutoScaling/latest/DeveloperGuide/WhatIsAutoScaling.html.

h2. In case of Emergency (Turn it off)

• Set min, desired and max to be the same for the group ** They should also be set to a value greater than the capacity you think you need
• Disable scaling actions ** Command:

as-suspend-processes MyAutoScalingGroup
as-resume-processes MyAutoScalingGroup

** "AWS Quick Reference":http://docs.amazonwebservices.com/AutoScaling/latest/DeveloperGuide/US_SuspendResume.html ** "AWS Detailed Doc":http://docs.amazonwebservices.com/AutoScaling/latest/APIReference/API_SuspendProcesses.html