Hey all, getting ready to setup VDRO in the lab and production, but I have questions on the location of the vCenter server. Currently, my vCenter is located in the primary site, but wondering if it should be instead setup at the recovery site, or if I should have HA or ELM configured so that there is a second vCenter setup at the recovery site. ELM doesn’t sound as useful for this situation, but HA may work and there is low enough latency between the primary and recovery sites to support HA. That said, I was hoping to the put the witness at our third site, but latency is higher to that location so that may not work. Anyhow, I know I need to get my VBR backup server moved to the recovery site (was already on my list) but what’s considered the best practice here?
VDRO - vCenter Location or HA Configuration
Best answer by MicoolPaul
Morning!
vCenter HA is not the answer unfortunately, though it looks like it. This is because, and I quote:
“vCenter HA has been tested and certified to perform on physically adjacent ESXi hosts, and is not designed as a disaster recovery solution for locations connected over long distances. The replication traffic is too sensitive to disruption in these configurations and commonly becomes a point of failure, even after a successful deployment. For these reasons, the VCHA network does not support being configured over a WAN topology." Source: https://kb.vmware.com/s/article/85579
You should ensure the vCenter responsible for recovery is outside of the fault domain you’re trying to protect as you require the survivability of DNS & vCenter for a successful VDRO experience 😊 So this could be a single vCenter instance that lives at the DR site, or a local vCenter instance for the DR resources that VDRO is aware of for recovery operations.
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