To ensure a new server has the same processor baseline as the existing servers in a vSphere cluster, which strategy should be applied?

The most suitable strategy to ensure that a new server has the same processor baseline as the existing servers in a vSphere cluster is Enhanced vMotion Compatibility (EVC). This feature allows clusters to accommodate different generations of processors by presenting a uniform processor feature set to all hosts in the cluster.

EVC enables virtual machines to maintain compatibility with different hardware by masking features of the CPU that are not common across all CPUs in the cluster. This ensures that virtual machines can be migrated seamlessly among hosts within the cluster without encountering CPU compatibility issues. By using EVC, organizations can add new servers with different processors while maintaining a consistent baseline for CPU features necessary for smooth operations and migrations.

The other strategies mentioned do not specifically address the requirement for maintaining consistent CPU compatibility across different hosts in a cluster. For example, vSphere High Availability focuses on providing redundancy and failover capabilities to protect against host failures, while vSphere vMotion allows for live migration of virtual machines but does not handle CPU compatibility requirements directly. Fault Tolerance provides continuous availability for virtual machines by keeping a secondary instance running alongside the primary, but it also does not affect the compatibility of different CPU architectures.