You can configure how Proactive HA responds when a provider has notified its health degradation to vCenter, indicating a partial failure of that host.
About this task
This page is editable only if you have enabled vSphere DRS.
- In the vSphere Web Client, browse to the Proactive HA cluster.
- Click the Configure tab.
- Select vSphere Availability and click Edit.
- Select Turn on Proactive HA.
- Click Proactive HA Failures and Responses.
- Select from the following configuration options.
Determine whether host quarantine or maintenance mode and VM migrations are recommendations or automatic.
Manual. vCenter Server suggests migration recommendations for virtual machines.
Automated. Virtual machines are migrated to healthy hosts and degraded hosts are entered into quarantine or maintenance mode depending on the configured Proactive HA automation level.
Determine what happens to partially degraded hosts.
Quarantine mode for all failures. Balances performance and availability, by avoiding the usage of partially degraded hosts provided that virtual machine performance is unaffected.
Quarantine mode for moderate and Maintenance mode for severe failure (Mixed). Balances performance and availability, by avoiding the usage of moderately degraded hosts provided that virtual machine performance is unaffected. Ensures that virtual machines do not run on severely failed hosts.
Maintenance mode for all failures. Ensures that virtual machines do not run on partially failed hosts.
Host.Config.Quarantine and Host.Config.Maintenance privileges are required to put hosts in Quarantine mode and Maintenance mode, respectively.
To enable Proactive HA providers for this cluster, select the check boxes. Providers appear when their corresponding vSphere Web Client plugin has been installed and the providers monitor every host in the cluster. To view or edit the failure conditions supported by the provider, click the edit link.
- Click OK.