You're spot on with your 100ms max latency between PSCs. BTW, max latency for long distance vMotion is 150ms RTT. These are not hard technical limits but what we are comfortable supporting based ...
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You're spot on with your 100ms max latency between PSCs. BTW, max latency for long distance vMotion is 150ms RTT. These are not hard technical limits but what we are comfortable supporting based on our own testing. Would things technically work with higher latencies? Probably. But don't put yourself in a risky position that may prevent you from getting support if there is an issue. Having said that, what many large customers are doing today is consolidating down to one SSO domain per region. It would be great if we could get down to one global SSO domain, but today, in vSphere 6.0, we would really advise not going over 100ms. The higher the latency between PSCs, the higher the risk of conflicting changes within the SSO domain. Also, from a UI performance perspective, if you are managing multiple vCenters via Enhanced Linked Mode, it is going to get slower and slower as that latency increases. We're definitely collecting feedback from customers and we would like to allow our customers to architect their SSO domains as they see fit. But today we have these guidelines we need to work within. Hope this helps!
