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      Auto Scaling overview
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        Auto Scaling overview

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          Article summary

          Available in Classic and VPC

          Auto Scaling is a service that helps to flexibly respond to changes in demand by increasing or decreasing the number of virtual servers according to monitoring results or user settings.

          Auto Scaling features

          Auto Scaling provides the following features:

          • Securing high availability despite difficult-to-predict demand: even if you cannot accurately predict the server capacity required to use the service, you can automatically add and return servers when certain conditions are reached. There is no need to inject a lot of servers in advance for service availability.
          • Efficient server operation for services with changing traffic by time zone: if traffic by time slot is predicted, servers can be added at times when traffic increases, and returned at times when traffic decreases. You can manage server operating costs more efficiently as servers increase only when needed.

          Information on Auto Scaling user guide

          Auto Scaling is available in Korea, US, Singapore, Japan, and Germany Regions. The functions provided by region are the same, but the supported platform environment is different. Therefore, use the service by referring to the table of contents of the user guide for your region.

          Korea and Singapore Regions

          This guide will walk you through the information you need to start using Auto Scaling in the Korea and Singapore Regions.

          • Auto Scaling overview: introduction to Auto Scaling and information on related helpful resources
          • Auto Scaling　prerequisites: information on environment specifications supported by Auto Scaling and usage fees
          • Auto Scaling concepts: key concepts related to Auto Scaling and detailed information on supported functions
          • Auto Scaling quickstart: information on the entire process of using Auto Scaling
          • VPC: information on how to start and use Auto Scaling on the VPC platform
            • Getting started with Auto Scaling: learn how to start using Auto Scaling
            • Using Auto Scaling: information on how to subscribe to Auto Scaling and manage it on NAVER Cloud Platform's console
              • Launch Configuration: information on how to set the server configuration template to be created by Auto Scaling
              • Auto Scaling Group: information on how to create Auto Scaling server groups and setting the scaling policy
          • Classic: information on how to start and use Auto Scaling on the Classic platform
            • Getting started with Auto Scaling: learn how to start using Auto Scaling
            • Using Auto Scaling: information on how to subscribe to Auto Scaling and manage it on NAVER Cloud Platform's console
              • Launch Configuration: information on how to set the server configuration template to be created by Auto Scaling
              • Auto Scaling Group: information on how to create Auto Scaling server groups and setting the scaling policy
          • Managing Auto Scaling permissions: information on how to manage Auto Scaling permissions using Sub Account
          • Auto Scaling glossary: familiarize yourself with key terms and definitions
          • Auto Scaling release notes: see documentation history for Auto Scaling user guides

          Korea, Japan, and Germany Regions

          This guide will walk you through the information you need to start using Auto Scaling in the US, Japan, and Germany Regions.

          • Auto Scaling overview: introduction to Auto Scaling and information on related helpful resources
          • Auto Scaling　prerequisites: information on environment specifications supported by Auto Scaling and usage fees
          • Auto Scaling concepts: key concepts related to Auto Scaling and detailed information on supported functions
          • Auto Scaling quickstart: information on the entire process of using Auto Scaling
          • Classic: information on how to start and use Auto Scaling on the Classic platform
            • Getting started with Auto Scaling: learn how to start using Auto Scaling
            • Using Auto Scaling: information on how to subscribe to Auto Scaling and manage it on NAVER Cloud Platform's console
              • Launch Configuration: information on how to set the server configuration template to be created by Auto Scaling
              • Auto Scaling Group: information on how to create Auto Scaling server groups and setting the scaling policy
          • Managing Auto Scaling permissions: information on how to manage Auto Scaling permissions using Sub Account
          • Auto Scaling glossary: familiarize yourself with key terms and definitions
          • Auto Scaling release notes: see documentation history for Auto Scaling user guides

          NAVER Cloud Platform provides a variety of related resources as well as the user guide in order to help customers better understand Auto Scaling. If you are considering using Auto Scaling, make good use of the following resources.

          Check FAQs first.

          You can get your questions answered quickly by referring to the answers in the FAQ before reading the user guide. If your questions are not resolved in the FAQs, see the user guides to find the information you want.

          Q. How can I use Auto Scaling?
          A. You can use it by creating a launch configuration and Auto Scaling Group on NAVER Cloud Platform's console.

          Q. What can I set and check in Auto Scaling Group?
          A. The setting and checking items of Auto Scaling Group are as follows:

          • Setting items: applying Launch Configuration, setting the scaling policy, setting the scaling schedule, setting event notification, and managing detailed processes
          • Checking items: checking Auto Scaling performance history and checking the list of included servers

          Q. What are the Auto Scaling policies?
          A. There are three scaling policies.

          • Increase/decrease change: this method adds or deletes a specified number of servers regardless of the size of the Auto Scaling group.
          • Ratio change: this method adds or deletes servers at a constant ratio compared to the size of the Auto Scaling group.
          • Fixed value: this method fixes the size of the Auto Scaling group to a specified value.

          Q. What should I do if the server is not created because the LAUNCH process is paused during the Auto Scaling Group process?
          A. An administrative suspension may be the cause of the suspension of the LAUNCH process.
          Administrative suspension is a situation in which the use of a Launch Configuration is suspended because it is determined to be defective. If the management agent inside the OS fails to start (wait for up to 60 minutes) while rebooting to apply settings during the initial boot of the server, rebooting fails. If the same operation fails even after attempting up to 5 times, it is considered a Launch Configuration defect.
          During administrative suspension, it is necessary to repeatedly identify the cause of server creation failure, take action, and then cancel the suspension in the process management setting. (See Change Auto Scaling Group settings (VPC), (Classic))

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