7.1

21 On the Server and Account Seings page, in the Server Installation Information text boxes, enter the
user name and password of the service account user that has administrative privileges on the current
installation server.
The service account user must be one domain account that has privileges on each distributed IaaS
server. Do not use local system accounts.
22 Provide the passphrase used to generate the encryption key that protects the database.
Option Description
If you have already installed
components in this environment
Type the passphrase you created previously in the Passphrase and
 text boxes.
If this is the first installation
Type a passphrase in the Passphrase and  text boxes. You must
use this passphrase every time you install a new component.
Keep this passphrase in a secure place for later use.
23 Specify the IaaS database server, database name, and authentication method for the database server in
the Microsoft SQL Database Installation Information text box.
This is the IaaS database server, name, and authentication information that you created previously.
24 Click Next.
25 Click Install.
26 When the installation nishes, deselect Guide me through the initial  and click Next.
27 Click Finish.
What to do next
To ensure that the Manager Service you installed is a passive backup instance, verify that the
vRealize Automation Service is not running and set it to "Manual" startup type.
A system administrator can change the authentication method used to access the SQL database during run
time (after the installation is complete). See “Conguring Windows Service to Access the IaaS Database,” on
page 94.
Installing Distributed Execution Managers
You install the Distributed Execution Manager as one of two roles: DEM Orchestrator or DEM Worker. You
must install at least one DEM instance for each role, and you can install additional DEM instances to
support failover and high-availability.
The system administrator must choose installation machines that meet predened system requirements. The
DEM Orchestrator and the Worker can reside on the same machine.
As you plan to install Distributed Execution Managers, keep in mind the following considerations:
n
DEM Orchestrators support active-active high availability. Typically, you install one DEM Orchestrator
on each Manager Service machine.
n
Install the Orchestrator on a machine with strong network connectivity to the Model Manager host.
n
Install a second DEM Orchestrator on a dierent machine for failover.
n
Typically, you install DEM Workers on the IaaS Manager Service server or on a separate server. The
server must have network connectivity to the Model Manager host.
n
You can install additional DEM instances for redundancy and scalability, including multiple instances
on the same machine.
There are specic requirements for the DEM installation that depend on the endpoints you use. See
“Distributed Execution Manager Requirements,” on page 23.
Chapter 4 The Standard vRealize Automation Installation Interfaces
VMware, Inc. 91