To keep virtual machines (VMs) up and running at all times in a vSphere cluster, an administrator would like VMs to be migrated automatically when the host hardware health status becomes degraded.
Which cluster feature can be used to meet this requirement?
To ensure that virtual machines (VMs) are migrated automatically when the host hardware health status becomes degraded, the correct feature to use is Proactive HA. Proactive HA works in conjunction with DRS to detect hardware issues and moves VMs from potentially failing hosts to healthy ones, thereby preventing any downtime and keeping VMs running smoothly.
Answer is correct. Proactive HA remediates based on host degradation. Be familiar with automation level and remediation options as well for the test.
Proactive HA is used. It works with DRS to move the VMs to other hosts. Predictive DRS is linked with vRealize Operations to predict the resource usages and better load balance the workloads compared to the simple DRS. Nothing to see with hardware health status.
"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." https://docs.vmware.com/en/VMware-vSphere/8.0/vsphere-availability/GUID-3E3B18CC-8574-46FA-9170-CF549B8E55B8.html
HA is used to restart VMs (causing a migration) when a host fails. Proactive HA responds when there is a partial failure on teh host. DRS will monitor host 'health' and move VMs based on the DRS score and configured automation level. The question stipulates that VMs will be moved automatically when host health degrades. Answer is A - Predictive DRS.
B, Proactive HA works with DRS to migrate VMs out of degraded hosts. https://docs.vmware.com/en/VMware-vSphere/8.0/vsphere-availability/GUID-3E3B18CC-8574-46FA-9170-CF549B8E55B8.html https://kb.vmware.com/s/article/92177
The key word her is "VMs to be migrated automatically" when the host hardware health status becomes degraded. (A). Predictive DRS
Predictive drs is related to resource balance and performance not issues. Proactive HA Automation level: 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. https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.avail.doc/GUID-3E3B18CC-8574-46FA-9170-CF549B8E55B8.html
Understand the difference. Migration moves virtual machine, no down time. Restarts is when virtual machine is down and HA restarts it, incurring down time. There is no migration in HA, only restarts.
Proactive HA migrates VMs, it works with DRS.