6.7

Table Of Contents
Prerequisites
To upgrade vCenter Server, your ESXi hosts must be at version 6.0. If your ESXi hosts are earlier than
6.0, upgrade them to 6.0. Read and follow all best practices when upgrading your hosts to ESXi 6.0.
Procedure
1 To keep your current SSL certificates, back up the SSL certificates that are on the vCenter Server
system before you upgrade to vCenter Server 6.7.
The default location of the SSL certificates is %allusersprofile%\Application
Data\VMware\VMware VirtualCenter.
2 If you have Custom or Thumbprint certificates, see Host Upgrades and Certificates to determine your
preparatory steps.
3 If you have vSphere HA clusters, SSL certificate checking must be enabled.
If certificate checking is not enabled when you upgrade, vSphere HA fails to configure on the hosts.
a Select the vCenter Server instance in the inventory panel.
b Click the Configure tab, then click General tab.
c Verify that the SSL settings field is set to vCenter Server requires verified host SSL
certificates.
Your ESXi hosts are ready for vCenter Server upgrade.
Verify Preparations Are Complete for Upgrading vCenter Server
Verify that all components of your environment are ready to upgrade vCenter Server.
Your pre-upgrade configuration of vCenter Server services determines your post-upgrade deployment
type.
For information on synchronizing clocks, see Synchronizing Clocks on the vSphere Network.
To download the installer, see Download the vCenter Server Installer for Windows
Prerequisites
After you have verified basic compatibility and upgrade readiness for your database, network, local
database communication, and ESXi hosts, you are ready to perform the final tasks to assure upgrade
readiness of your environment.
Procedure
1 Log in as a member of the Administrators group on the host machine, with a user name that does not
contain non-ASCII characters.
vCenter Server Upgrade
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