Installing Zerto Virtual Replication : Requirements
  
Requirements
For VMware vSphere: See Zerto Virtual Replication Requirements for vSphere Environments.
For Hyper-V: See Zerto Virtual Replication Requirements for Microsoft Hyper-V Environments.
Note: (vSphere only) If a proxy server is used at the site, specify the IP address of the Zerto Virtual Manager in the exception list in the Proxy Server settings.
Zerto recommends installing the Zerto Virtual Manager with the following profile:
On a dedicated virtual machine.
With a dedicated administrator account.
No other applications installed on this machine. If additional applications are installed, the Zerto Virtual Manager service must receive enough resources and HA remain enabled.
(vSphere only) With VMware vSphere High Availability (HA) enabled.
(vSphere only) With the VM Restart Policy set to High.
(Hyper-V only) With the Virtual machine priority set to High.