6.7

Table Of Contents
2 Make sure that your pre-upgrade configuration is correct for the post-upgrade deployment you want
to achieve.
When upgrading from vCenter Server 6.0 or 6.5, the software preserves your current deployment
during the upgrade to vCenter Server 6.7.
3 Verify that the required services have started.
n
The vCenter Single Sign-On instance to which you are registering vCenter Server
n
VMware Certificate Authority
n
VMware Directory Service
n
VMware Identity Manager Service
n
VMware KDC Service
n
tcruntime-C-ProgramData-VMware-cis-runtime-VMwareSTSService
4 Before you upgrade a vSphere product, synchronize the clocks of all machines on the vSphere
network.
5 If you do not intend to use vCenter Server 6.7 in evaluation mode, make sure that you have valid
license keys for all purchased functionality. License keys from previous versions of vSphere continue
to support the previous versions, however they do not support vCenter Server 6.7.
If you do not have the license key, you can install in evaluation mode and use the vSphere Web Client
to enter the license key later.
6 Close all instances of the vSphere Web Client.
7 Confirm that no processes conflict.
8 Download the installer.
Your vCenter Server environment is ready for the upgrade. See Upgrading vCenter Server 6.0 or 6.5 on
Windows.
Synchronizing Clocks on the vSphere Network
Verify that all components on the vSphere network have their clocks synchronized. If the clocks on the
machines in your vSphere network are not synchronized, SSL certificates, which are time-sensitive, might
not be recognized as valid in communications between network machines.
Unsynchronized clocks can result in authentication problems, which can cause the installation to fail or
prevent the vCenter Server Appliance vpxd service from starting.
Verify that any Windows host machine on which vCenter Server runs is synchronized with the Network
Time Server (NTP) server. See the Knowledge Base article http://kb.vmware.com/kb/1318.
To synchronize ESXi clocks with an NTP server, you can use the VMware Host Client. For information
about editing the time configuration of an ESXi host, see vSphere Single Host Management.
vCenter Server Upgrade
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