You can check out the release notes of VMware vSphere Hypervisor 6.7 from here. To download VMware vSphere Hypervisor 6.7 (ESXi ISO) you need to register at the VMware website. After registering with VMware website, you can download VMware vSphere Hypervisor 6.7 ESXi ISO file to your computer. Installer for VMware vCenter Server, VMware Platform Services Controller, VMware vSphere Update Manager, Update Manager Download Service (UMDS) and other vCenter Server-related modules. It enables installation of vCenter Server on Windows (Requires a 64-bit capable server).
The has provided vCenter High Availability (HA) with vSphere 6.5 onwards. In the fully functioning HTML5 release of vCenter 6.7 Update 1 onwards the setup of vCenter HA was hugely simplified. Read more about the improvements made in vSphere 6.7U1 in blog post. By implementing vCenter HA you can protect your vCenter from host and hardware failures, and significantly reduce down time during patching due to the active / standby nature of the vCenter cluster.
The vCenter HA architecture is made up of the components in the vSphere image below. The vCenter Server Appliance is cloned out to create passive and witness nodes. Updated data is replicated between the active and passive nodes.
In the event of an outage to the active vCenter the passive vCenter automatically assumes the active role and identity. Management connections still route to the same IP address and FQDN, however they have now failed over to the replica node.
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