7.1
Table Of Contents
- Managing vRealize Automation
- Contents
- Managing vRealize Automation
- Updated Information
- Managing vRealize Automation
- Broadcast a Message on the Message Board Portlet
- Starting Up and Shutting Down vRealize Automation
- Updating vRealize Automation Certificates
- Extracting Certificates and Private Keys
- Replace Certificates in the vRealize Automation appliance
- Replace the Infrastructure as a Service Certificate
- Replace the IaaS Manager Service Certificate
- Updating the vRealize Automation Appliance Management Site Certificate
- Replace a Management Agent Certificate
- Change the Polling Method for Certificates
- Managing the vRealize Automation Postgres Appliance Database
- Backup and Recovery for vRealize Automation Installations
- Configuring the Customer Experience Improvement Program for vRealize Automation
- Adjusting System Settings
- Monitoring vRealize Automation
- Monitoring and Managing Resources
- Bulk Import, Update, or Migrate Virtual Machines
- Managing Machines
- Managing Virtual Machines
- Running Actions for Provisioned Resources
A clustered configuration contains one master node and one or more replica nodes. The master node is
the vRealize Automation appliance node with the master database that supports system functionality.
Replica nodes contain copies of the database that can be pulled into service if the master node fails.
Several high availability appliance database options exist. Choosing the replication mode is the most
important database configuration option. The replication mode determines how your vRealize Automation
deployment maintains data integrity and, for high availability configurations, how it fails over should the
master or primary node fail. There are two available replication modes: synchronous and asynchronous.
Both replication modes support database failover, though each has advantages and disadvantages. Note
that to support high availability database failover, asynchronous mode requires at least two nodes, while
synchronous mode requires at least three nodes.
Replication Mode Advantages Disadvantages
Synchronous Minimizes chance of data loss.
n
Might affect system performance .
n
Requires at least three nodes.
Asynchronous
n
Requires only two nodes.
n
Affects system performance less
than synchronous mode.
Not as robust as synchronous mode in
preventing data loss.
vRealize Automation supports both modes, but operates in asynchronous mode by default and provides
high availability only if there are at least two appliance database nodes. The Database tab on the Virtual
Appliance Management Interface enables you to switch synchronization modes and to add database
nodes as needed.
If you start with one node in a non-high-availability configuration, you can add nodes later as required to
enhance high availability. If you have the appropriate hardware and require maximum protection against
data loss, consider configuring your deployment to operate in synchronous mode.
Configure the Appliance Database
You can use the Virtual Appliance Management Interface Database page to monitor or update the
configuration of the appliance database. You can also use it to change the master node designation and
the synchronization mode used by the database.
The appliance database is installed and configured during vRealize Automation system installation and
configuration, but you can monitor and change the configuration from the Database tab on the Virtual
Appliance Management Interface.
The Connection Status text box indicates whether the database is connected to the
vRealize Automation system and is functioning correctly.
If your appliance database uses multiple nodes to support failover, the table at the bottom of the page
displays the nodes, and their status and indicates which node is the master. The Replication mode text
box shows the currently configured operation mode for the system, either synchronous or asynchronous.
Use this page to update appliance database configuration.
Managing vRealize Automation
VMware, Inc. 27