7.3

Table 3‑11. Sync State for Appliance Database Replication Modes
Mode Sync State Message
Synchronous replication Master node - no status
Replica node - sync
Other nodes - potential
Asynchronous replication Master node - no status
Other nodes - potential
The Valid column indicates whether replicas are synchronized with the master node. The master node is
always valid.
The Priority column shows the position of replica nodes in relation to the master node. The master node
has no priority value. When promoting a replica to become the master, select the node with the lowest
priority value.
When operating in synchronous mode, vRealize Automation invokes automatic failover. In the event of
master node failure the next available replica node will automatically become the new master. The
failover operation requires 10 to 30 seconds on a typical vRealize Automation deployment.
Prerequisites
n
Install and configure vRealize Automation according to appropriate instructions in Installing vRealize
Automation 7.3.
n
Log in to the vRealize Automation management console as root.
n
Configure an appropriate embedded Postgres appliance database cluster as part of your
vRealize Automation deployment.
Procedure
1 On the Virtual Appliance Management Interface, select vRA Settings > Database.
2 If your database uses multiple nodes, review the table at the bottom of the page and ensure that the
system is operating appropriately.
n
Ensure that all nodes are listed.
n
Ensure that the appropriate node is the designated master node.
Note Do not click Sync Mode to change the synchronization mode of the database unless you are
certain that your data is secure. Changing the sync mode without preparation may cause data loss.
3 To promote one of the nodes to be the master, click Promote in the appropriate column.
4 Click Save Settings to save your configuration if you have made any changes.
Managing vRealize Automation
VMware, Inc. 34