Before you run the upgrade, review the prerequisites.

The following prerequisites must be met for all upgrades to vCloud Automation Center 6.1.

Verify that vCloud Automation Center 6.0.1 is fully installed and configured.

Verify that your site meets 6.1 system requirements for installation. See the vCloud Automation Center Support Matrix on the VMware Web site.

Verify that Microsoft Distributed Transaction Coordinator(MSDTC) is enabled on all vCloud Automation Center and associated SQL servers by complying with instructions in VMware Knowledge Base article Various tasks fail after upgrading or migrating to VMware vCloud Automation Center (vCAC) 6.1.x (2089503) at

Consult the VMware Interoperability Matrix for information about compatibility with other VMware products.

Back up configuration files in the /etc/vcac and /etc/vco directories on appliances and back up all databases.

Create a snapshot of your virtual appliances and IaaS servers.

Perform the upgrade at a time when the system is not in heavy use.

Shut Down vCloud Automation Center Services on Your IaaS Windows Server.

Review the following table for information about upgrade considerations for other VMware components integrated with your vRealize Automation deployment.

If your site uses ...

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vSphere single sign-on server (SSO)

If you are using a vSphere SSO, verify that it is a supported version and at the correct patch level. See the vCloud Automation Center Support Matrix for information about supported versions.

vCloud Automation Center Designer

If your site includes vCloud Automation Center Designer, uninstall it. After the upgrade is finished, install the 6.1 version provided on the VMware Appliance Install download page. See the Extensibility Guide for vCloud Automation Center 6.1.

An external vCenter Orchestrator appliance

If your deployment uses an external vCenter Orchestrator appliance and it is connected to the Identity Appliance, upgrade vCenter Orchestrator before you upgrade vCloud Automation Center.