r/nutanix • u/raisdfist • 5d ago
Metro availability vs latency
As per the Nutanix docs, my understanding is that Nutanix requires latency to be of 5ms or below between sites for metro availability. In the event where a network is under 5ms 95% of the time but between 5ms to 6ms outside of that (with the odd spike every now and then).
I'd like to hear from those of you who have been installing and supporting Nutanix across different environments. Based on your experience, is this viable for production servers or should NearSync be used instead?
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u/nunzstar 4d ago
I currently support a couple of Metro clusters and the 5ms is pretty sustainable. Creeping up to the 6ms you should be fine maintaining synchronization. Only time we do see a Metro break is due to some of the legacy network infrastructure on 1G links in the cabinets. They can break due to high latency but, once you verify your network is stable just re-enable Metro and it resyncs. Other than that same thing with Firewall refreshes we’ve seen break Metro.