Architecture Review of Zerto Virtual Replication Hyper-V (Enterprise)

KB Number:
000001063

Symptoms:
The purpose of this article is to show the high level architecture of Zerto Virtual Replication. This includes Zerto Virtual Replication components, necessary infrastructure components, and port connections between components. 

Solution:

The following diagram shows how the main Zerto Virtual Replication components are deployed across sites to provide disaster recovery across these sites.

The following diagram shows Zerto Virtual Replication components deployed on one site and the ports and communication protocols used between the components.

Zerto Virtual Replication can be installed at multiple sites and each of these sites can be paired to any of the other sites. Zerto Virtual Replication supports both the protected and recovery sites being managed by a single System Center Virtual Machine Manager. For example, in the following scenario:
■From a branch office, to the main office, both managed by the same System Center Virtual Machine Manager.
■From one host to a second host, both managed by the same System Center Virtual Machine Manager.
■To the same host but using different storage for recovery.
When a single System Center Virtual Machine Manager is used, port 9081 shown in the above diagram is not used. Also, it is recommended to install Zerto Virtual Replication in the main office site where protected machines will be recovered.
The following table provides basic information about the ports shown in the above diagram by Zerto Virtual Replication. For a more detailed description, refer toZerto Virtual Manager Firewall Considerations.
 

REF. # PORT PURPOSE
1, 10, 11 90801 Communication between the Zerto Virtual Manager and Zerto internal APIs, Zerto cmdlets, and a Zerto VSS Agent.
2 8100 Communication between the Zerto Virtual Manager and the System Center Virtual Machine Manager.
3, 5, 9 96691 HTTPS communication between:
■Machines running Zerto User Interface and Zerto Virtual Manager.
■Zerto Virtual Manager and Zerto REST APIs.
■Every Hyper-V host and the Zerto Virtual Manager.
4 90811 Communication between paired Zerto Virtual Managers2.
6 4005 Log collection between the Zerto Virtual Manager and site VRAs.
7, 14 4006 Communication between the Zerto Virtual Manager and site VRAs and the site Virtual Backup Appliance.
8 4009 Communication between the Zerto Virtual Manager and site VRAs to handle checkpoints.
12 4007 Control communication between protecting and recovering VRAs.
13 4008 Communication between VRAs to pass data from protected virtual machines to a VRA on a recovery site.
15 9180 Communication between the VBA and VRA.

1 The default port provided during the Zerto Virtual Replication installation which can be changed during the installation.
2 When the same System Center Virtual Machine Manager is used for both the protected and recovery sites, Zerto Virtual Replication is installed on one site only and this port can be ignored.


Affected Versions:
All

Hypervisor:
Hyper-V

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