4.1 Architectural Overview
vRealize Operations Manager is available in two different deployment models—as a preconfigured virtual appliance (vApp) or as a Windows or Linux installable package.
The vRealize Operations Manager vApp encapsulates a VMware virtual machine. Each instance of vRealize Operations Manager can be configured to perform one of the following roles within the complete vRealize Operations Manager instance/cluster. These building block roles are:
• Master node – First node (mandatory) in a cluster or single standalone node.
• Master replica node – An optional node to provide high availability (HA) to the master node.
• Data node – Used to scale out a vRealize Operations Manager cluster.
• Remote collector node – Performs data collection only, can be used behind firewalls or across limited bandwidth connections
The following table lists the components that make up a vRealize Operations Manager node.
Table 2. vRealize Operations Manager Logical Node Architecture
Component | Description |
Admin / Product UI server | Web application that serves as both the user interface and the administrative interface. |
REST API / Collector | Collects data from all the components in the enterprise. |
Controller | Handles movement of data between the UI server, Collector, and analytics engine. |
Analytics | Tracks relationships and performs correlation and calculation of metrics and super metrics. Performs capacity planning functions and alert generation. |
Persistence | Performs database operations across all nodes in the solution. |
FSDB | Holds all metrics in their raw format. Each node of a vRealize Operations Manager cluster contains an FSDB as part of overall data persistence. |
xDB (HIS) | Stores Historical Inventory Service (HIS) data. Available only on the master node/master replica. |
Global xDB | Contains all data that cannot be spread across cluster nodes (custom dashboards and reports, policy settings, alert rules, super metric formulas). Available only on the master node and master replica. |
vRealize Operations Manager can be horizontally scaled out to multiple nodes to monitor larger environments and provide high availability. Each vRealize Operations Manager installation can scale to a maximum of eight nodes. The following figure shows the vRealize Operations Manager logical cluster architecture.
Figure 6. vRealize Operations Manager Logical Cluster Architecture
