Merge pull request #24825 from novas0x2a/patch-1

document HPA's implicit deactivation

Author: k8s-ci-robot

content/en/docs/tasks/run-application/horizontal-pod-autoscale.md

@@ -433,12 +433,18 @@ behavior:
     selectPolicy: Disabled
 ```
 
+## Implicit maintenance-mode deactivation
 
+You can implicitly deactivate the HPA for a target without the
+need to change the HPA configuration itself. If the target's desired replica count
+is set to 0, and the HPA's minimum replica count is greater than 0, the HPA 
+stops adjusting the target (and sets the `ScalingActive` Condition on itself
+to `false`) until you reactivate it by manually adjusting the target's desired
+replica count or HPA's minimum replica count.
 
 ## {{% heading "whatsnext" %}}
 
 
 * Design documentation: [Horizontal Pod Autoscaling](https://git.k8s.io/community/contributors/design-proposals/autoscaling/horizontal-pod-autoscaler.md).
 * kubectl autoscale command: [kubectl autoscale](/docs/reference/generated/kubectl/kubectl-commands/#autoscale).
 * Usage example of [Horizontal Pod Autoscaler](/docs/tasks/run-application/horizontal-pod-autoscale-walkthrough/).
-