Which feature in vSphere helps to balance workloads between hosts after failover and VM restart?

vSphere DRS (Distributed Resource Scheduler) is designed specifically to optimize resource utilization across a cluster of hosts. It automatically balances virtual machine workloads by reallocating resources among hosts in response to changing demands.

When a failover occurs and a VM is restarted on another host, DRS helps to ensure that the workload is effectively distributed across the remaining hosts in the cluster. This balancing act helps to prevent any one host from becoming overloaded while others are underutilized, which is critical for maintaining performance levels and ensuring availability.

Additionally, DRS continuously monitors the resource usage of VMs and the hosts they reside on, adjusting allocations as needed to maintain optimal performance. This dynamic allocation process is vital in environments where workloads can fluctuate considerably, enabling efficient and seamless operation after failover scenarios.

In contrast, while vSphere Replication focuses on providing disaster recovery through replicating VMs to another site, and vSphere High Availability offers a way to quickly restart VMs on another host in the event of a host failure, neither feature actively balances resource allocation across hosts in the way that vSphere DRS does. vSphere Storage DRS, on the other hand, specifically handles storage resources rather than compute resources, focusing on optimizing the distribution of VMs