December 2017
Beginner
598 pages
14h 7m
English
Content preview from Mastering VMware vSphere 6.5
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Admission control
Admission control guarantees vSphere HA failover by ensuring enough spare failover capacity inside the cluster. You need free resources when hosts must manage the failure for all affected VMs and admission control takes care of you.
Configuration is at the cluster level under the vSphere Availability section shown as follows:
Admission Control
You can define host failover capacity using one of the following options:
- Disabled: This option is not a very good idea, but it is possible. For example, for a two nodes cluster, you may want to disable admission control during maintenance operation.
- Slot Policy (powered-on VMs)
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