Auto Scaling works against collections of instances that can be scaled together. In this video, explore the concept of Auto Scaling groups and how they fit into any implementation or design.
- When you begin working with auto scaling, … one of the first things you have … to understand in more detail … is the concept of an auto scaling group. … Don't confuse this with the groups that we looked at, … and we talked about identity and access management. … These are completely different groups. … Instead of being groups of users, … we're talking about groups of instances. … So, auto scaling groups can be defined … as a collection of instances with similar characteristics. … So, the instances have to be similar enough … that we can scale them out … and scale them in, having them with the abilities … to do the things that they need to do. … Now, they can be scaled based on criteria. … So, for example, … we can say that we want to scale them … based on network communications, … based on CPU utilization, and so forth. … We can specify the criteria … that we use to decide when we scale up, … or when we scale in, or when we scale out, … or when we scale in. … Unhealthy instances can be automatically replaced …
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