VMware Cloud Community
czelik
Contributor
Contributor

HA Physical server configuration

In a vSphere HA cluster, Do all the physical machines need to be the same configuration? If they don't have to be the same configuration, Is there a way to automatically set one of them as the master whenever this server is online?

1 Reply
rcporto
Leadership
Leadership

Not a requirements but a best practice to have nodes clusters with identical or at least similar configuration, the reason behind this is for instance, if you have two physical servers, one with 256GB of physical RAM and another one with only 128GB, if the host with 256GB fails, the remaining host may not be able to start all virtual machines from the failed host. Not sure what you mean with that "master" configuration, but you can create DRS affinity rules to pin virtual machines to specific hosts.

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Richardson Porto
Senior Infrastructure Specialist
LinkedIn: http://linkedin.com/in/richardsonporto