Figure 7.12 Cluster operations settings in Configuration Manager 2016
Where to Implement High Availability
With the great features available with Hyper-V clustering, it can be easy to think that
clustering the Hyper-V hosts and therefore providing high availability for all of the
virtual machines is the only solution you need. Clustering the Hyper-V hosts
definitely provides great mobility, storage sharing, and high availability services for
virtual machines, but that doesn’t mean it’s always the best solution.
Consider an application such as SQL Server or Exchange. If clustering is performed
only at the Hyper-V host level, then if the Hyper-V host fails, the virtual machine
resource is moved to another host and then started in a crash-consistent state; the
service would be unavailable for a period of time, and likely an amount of consistency
checking and repair would be required. Additionally, the host-level clustering will not
protect from a crash within the virtual machine where the actual service is no longer