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Table Of Contents
Figure 1-2. Enhanced Linked Mode for vCenter Server Appliance Deployments
Appliance
vCenter Server
Appliance
vCenter Server
Appliance
vCenter Server
Appliance
vCenter Server
Enhanced Linked Mode with Read Only Replication
If a vCenter High Availability (vCenter HA) instance is connected with another vCenter Server
instance with enhanced linked mode and vCenter HA failover occurs to the passive node and is
unable to communicate with its replication partner on the other vCenter Server node, the replica
on the vCenter HA node enters read-only mode.
Joining a vCenter Enhanced Linked Mode Domain
You can join a vCenter Server appliance to another node during deployment of the vCenter Server
appliance.
Note You can also join a vCenter Enhanced Linked Mode group by moving, or repointing, a
vCenter Server from one vSphere domain to another existing domain. See Repoint vCenter Server
to Another vCenter Server in a Different Domain for information on repointing a vCenter Server
node.
For example, you can deploy two vCenter Server appliance systems and join the two nodes using
vCenter Enhanced Linked Mode.
If you are deploying the vCenter Server appliance nodes with the UI Installer:
1 For Appliance 1, deploy the vCenter Server appliance as an instance on ESXi Host 1.
Synchronize the time settings with ESXi Host 1.
2 For Appliance 2, deploy the vCenter Server appliance as an instance on ESXi Host 1 and
configure the time settings so that Appliance 2 is synchronized with ESXi Host 1. In stage 2 you
select to join the vCenter Single Sign-On server of the deployed appliance on Appliance 1. For
specific instructions, see Stage 2 - Set up the Newly Deployed vCenter Server Appliance.
If you are deploying the vCenter Server appliance nodes with the CLI:
1 Configure the JSON configuration template embedded_vCSA_on_VC.json (or
embedded_vCSA_on_ESXi.json) for Appliance 1 as an instance on ESXi Host 1. See Prepare
Your JSON Configuration File for CLI Deployment for specific instructions on preparing the
JSON configuration file.
2 Deploy Appliance 1 by running the vcsa-cli-installer command. See Deploy a vCenter
Server Appliance by Using the CLI for instructions.
vCenter Server Installation and Setup
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