An administrator is trying to set up Host Partial Failure Response, but the Automated option is grayed out. What can the administrator change to enable the Automated option?

DRS Partially Automated controls whether VM placement recommendations require manual approval and has no effect on the availability of HA Host Partial Failure Response automation settings.

DRS Fully Automated enables automatic VM balancing and placement but is not a prerequisite for enabling the HA Host Partial Failure Response Automated option.

vSphere HA Host Monitoring is a foundational prerequisite for any automated host-level response in the cluster, including Host Partial Failure Response. When Host Monitoring is disabled, the HA subsystem cannot detect or react to host health degradation events, which causes the Automated response option to be grayed out. Enabling Host Monitoring restores the cluster's ability to assess host state and makes the Automated option available.

vSphere DPM manages host power-on and power-off cycles for energy efficiency and is entirely unrelated to HA host failure response configuration.