Which feature in vSphere helps allocate resources across multiple VMs?

Resource Pools are an essential feature in vSphere that enable the allocation and management of resources across multiple virtual machines (VMs). They allow administrators to define a hierarchy of resource allocation for CPU and memory, creating a container that holds VMs and their respective resources.

Using Resource Pools, you can allocate a specific amount of CPU and memory resources to a group of VMs while ensuring that they get the required resources according to their priority. This feature is particularly valuable in environments with varying workloads, as it allows for efficient distribution of resources based on needs. For instance, you can create resource pools for different departments within an organization, making it easier to manage and control resource allocation and usage, leading to better performance and efficiency across the infrastructure.

In contrast, vMotion is a feature that facilitates the live migration of VMs between hosts without downtime but does not directly manage resource allocation. Fault Tolerance provides high availability for VMs by maintaining an identical copy that can take over in case of a failure but does not address resource distribution. VM Snapshots are used for capturing the state of a VM at a specific point in time for backup and recovery purposes, which also does not involve resource management.