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FusionCloud 6.3.0 Solution Description 05

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Scaling Action

Scaling Action

A scaling action is to add ECS instances to or remove ECS instances from an AS group. Its purpose is to keep the number of instances the same as expected, thereby ensuring proper service running.

When the number of instances in an AS group is not the same as expected, a scaling action is triggered. Specifically, a scaling action occurs once the scaling condition is met or you manually change the expected number of instances:

  • When the AS policy condition is met, AS changes the expected number of instances based on the AS policy. When the expected number of instances is inconsistent with the actual one, a scaling action is triggered.
  • When you manually change the expected number of instances, it becomes inconsistent with the ECS instance quantity in the AS group.

The following describes the expected number of instances and its related concepts.

  • Expected Instances specifies the expected number of ECS instances in an AS group.
  • Min. Instances or Max. Instances specifies the minimum or maximum number of ECS instances in an AS group. The expected number of ECS instances must fall between the minimum number and maximum number.
  • Cooling Duration (s) specifies the duration for cooling a scaling action. The system begins to count the cooling duration after a scaling action is triggered.
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Updated: 2019-04-23

Document ID: EDOC1100026685

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