Azure Site Recovery Services
When a virtual machine that is protected from threats stops working, or the host server that it all runs on fails, Azure Site Recovery Services allows users to maintain business continuity until the virtual machine or host server on-premises is repaired and made available.
Create virtual private network
Azure Virtual networking is a service that enables organizations to create a point-to-point (P2P) or site-to-site (S2S) virtual private network that makes resources that are running in Azure (such as virtual machines and storage) look as though they are on the local network for seamless access to applications and resources.
Move an organization to the cloud
As organizations transfer their workloads to cloud computing, they seldom move all of their resources all at once. They instead move some resources to the cloud and keep some on the premises. It's much easier to move an organization to the cloud in stages over time. Azure Virtual Network integration provides the network infrastructure that makes that process seamless and manageable.
Larger Deployments Support
Windows Server 2019 Essentials provides increases the manageability of domains, users, and devices by adding support for larger deployments with multiple domains and domain controllers as well as ability to specify a designated domain controller.