March 2019
Intermediate to advanced
392 pages
11h 13m
English
Content preview from VMware vSphere 6.7 Data Center Design Cookbook - Third Edition
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How it works...
VCHA relies on a heartbeat network and quorum between the three nodes to avoid a split-brain scenario. The active node is the only node with a frontend or production IP address. The passive and witness nodes only have active IP addresses on the heartbeat network. This architecture is shown in the following diagram, with the embedded PSC deployment topology:
vCenter HA networking overview
There are several failure scenarios that will result in a failover from the active node to the passive node:
- vCenter service failure (or PSC service failure, if an embedded PSC is used)
- VCSA operating system failure
- Entire VM crashes
- Underlying ...
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