VM replication
Preview
vCloud Director includes a basic tool (VCDA) allowing you to replicate virtual machines, and thus protect them from unavailability of the underlying infrastructure.
Use cases
With VCDA, you can replicate VMs: between 2 vDCs of the same organization between 2 organizations located on the same site between 2 organizations located on 2 different sites The last case will obviously be to put in place a business recovery plan
VCDA will also be used for DRaaS, a service which is described on this page.
Prerequisites
None, VCDA is present and usable in the VCD console. But to set up a PRA between VDR and CHA, you must have ordered 2 organizations, one on each site.
Topology and naming rules
Schema
Definition of VCDA sites
Each IaaS zone is accessible by a VCD console, different depending on the site and the type of zone.
| Site | Console VCD | Scope | Site VCDA |
|---|---|---|---|
| VDR | console1 | access to the IaaS zone assigned to external clients | recovery1 |
| console2 | access to the IaaS zone assigned to external clients | recovery2 | |
| CHA | console4 | access to the IaaS zone assigned to external clients | recovery4 |
| console5 | access to the IaaS zone assigned to external clients | recovery5 |
Internal customers are customers of the Orange group, who have privileged access to certain resources reserved for Orange.
When the name of an organization begins with cav01evxxxxxxx, it is an organization hosted on the VDR site in the external IaaS zone (the 01 for console1, and the e for external IaaS).
A VCDA site is the access point that allows you to configure replication between sites. Each VCD site (consolex) has its VCDA site (recoveryx), as shown in the diagram above.
You can notice that we have 2 VCDA sites named migrate1 and migrate3, these sites allow our Migration teams to migrate VMs to the NGP platform, from the NUP platform.
VCDA Console
This is what we see on the VCDA console from an organization on console1:
Set up
Setting up replication is described in “step by step” mode on this page.
Billing
Principle
Billing is carried out on the basis of three elements :
- the number of protected VMs
- The replication policy used
- Intersite traffic generated (per GB transferred)
Refer to the price sheet for details
Replication policies
| Replication policies | RPO | Holding/Retention |
| Bronze | 24h | only the last replica |
| Sliver | 6h | only the last replica |
| Silver + | 6h | a replica stored for 24 hours |
| Gold | 1h | only the last replica |
| Gold + | 1h | 3 replicas stored for 3 days |
| Platinum | 5 min | only the last replica |
| Platinum + | 5 min | 7 replicas stored for 7 days |
A VM can only have one replication policy.
For more information
The Vmware site about VCDA : https://www.vmware.com/fr/products/cloud-director-availability.html
Short Links : 
