A management network fault splits an HA cluster into groups of hosts that cannot reach each other; only the group holding a VM's primary host keeps protecting it.
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Each book explains network partition in context, with comparison tables and the common traps.
Terms in this definition
- management network
Carries traffic between an ESX host and vCenter, along with other management traffic. From the DCUI, Configure Management Network lets an administrator change its VLAN, addressing, name servers and NICs.
- High Availability cluster
Two clustered Veeam Software Appliances, so a node failure does not take down backup services. One node does all the work while constantly copying its state across; switching over or failing over is an administrator's call.
- primary host
The HA host elected to talk to vCenter and keep watch on protected VMs and secondary hosts; mounting the most datastores helps a host win.