VMware Aria Operations for Networks collects health metrics from the Collector, Platform, and system to diagnose and monitor health problems related to the VMware Aria Operations for Networks instance.

Health metrics are of the following types:

  • Node metrics
  • Service metrics
  • System metrics

Viewing Health Metrics

You can view the node and service metrics on VMware Aria Operations for Networks Platform and Collector pages. Where as, you can view the system metrics only on the System Dashboard page.

To view node and service metrics:

  1. Enter Platform or Collector on the search bar.
  2. On the search results page, select a Platform or Collector to view the health metrics available for that entity.

To view the system metrics, Enter System Dashboard on the search bar.

Node Metrics

Node metrics provide information about the memory, disk IO, and CPU utilization of a node.

Metric Name Metric API Name Description
Memory Usage CUSTOM_METRIC[level:node]vRNI.used.memory.percentage.rate.average.number Percentage of memory used out of the total configured memory in the given node.
Data Disk Usage CUSTOM_METRIC[level:node]vRNI.used.disk.percentage.rate.average.number Percentage of disk input/output used in the given node.
CPU Usage CUSTOM_METRIC[level:node]vRNI.cpu.utilization.percentage.rate.average.number

Percentage of CPU used out of the total available CPU for a given node.

Service Metrics

Service metrics indicate if a service is running. In the metric API name, you must replace <service_name> with your service name (such as IpfixProcessor, ElasticSearch, Kafka) to view the state of the service.

Metric Name Metric API Name Description
Service Uptime CUSTOM_METRIC[service.name:<service_name>]vRNI.service.uptime.rate.average.number

Binary indicator to check if the VMware Aria Operations for Networks service is running and is healthy.

  • 0 denotes that the service is running and is healthy.
  • 1 denotes that the service is running, and is not healthy.
  • 2 denotes that the service is not running.

System Metrics

System metrics provide information about the performance and usage of the overall VMware Aria Operations for Networks system.

Metric Name Metric API Name Description
Processing Lag grid.messageAge.absolute.latest.millisecond

The lag time of the system's data processing grid.

High processing lag may result in the system showing stale data.
Grid Usage grid.busy.absolute.latest.percent

The capacity utilization of VMware Aria Operations for Networks's processing grid.

The utilization percentage is constantly high if the processing load increases. This may result in potential risk of developing high processing lag.

Adding many data sources, frequent addition and deletion of VMs, and increase in flow count are few of the reasons for increase in the processing load.
Indexer Lag grid.indexerLag.absolute.latest.millisecond

The lag time of the system's indexer.

High indexer lag may result in the system showing stale data.
VM Count vRNI.internal.tenants.usage.vm.count.absolute.maximum.number Total count of discovered VMs in the system.
Host Count

vRNI.internal.tenants.usage.host.count.absolute.maximum.numb

 Total count of discovered hosts in the system.
Application Count vRNI.internal.tenants.usage.application.count.absolute.maximum.number Total count of saved applications in the system.
Daily Flow Count vRNI.internal.tenants.usage.flow.daily.count.absolute.maximum.number Total count of unique flows in the last 24 hours.
Weekly Flow Count vRNI.internal.tenants.usage.flow.weekly.count.absolute.maximum.number Total count of unique flows in the last seven days.
Firewall Rule Count vRNI.internal.tenants.usage.firewallRule.count.absolute.maximum.number Total count of discovered firewall rules.