The vSAN Express Storage Architecture (ESA) is an optional, alternative architecture in VMware vSAN 8 that’s designed to achieve all-new levels of efficiency, scalability and performance. It features a single-tier architecture optimized for high-performance NVMe-based TLC flash devices for both on-premises environments and hyperscale public clouds.
For further information, visit:
Announcing vSAN 8
An Introduction to the vSAN Express Storage Architecture