What Is VMware vSAN ESA?
vSphere 8 introduces VMware vSAN Express Storage Architecture (ESA), focused on efficiency, performance, and less CPU usage. The new configuration has been optimized for NVMe-based TLC flash devices, abandoning cache layers and disk groups. VMware will privilege the deployments of vSAN as ESA, moving forward.
Read the article by Vladan Seget, a virtualization expert, on the direction, features, and novelties regarding the new VMware vSAN ESA in vSphere 8.