6.3

Table Of Contents
Super Metrics in vRealize Operations Manager
The super metric is a mathematical formula that contains one or more metrics. It is a custom metric that you
design and is useful when you need to track combinations of metrics, either from a single object or from
multiple objects. If a single metric cannot tell you what you need to know about the behavior of your
environment, you can dene a super metric.
After you dene it, you assign the super metric to one or more object types. This action calculates the super
metric for the objects in that object type and simplies the metrics display. For example, if you dene a super
metric that calculates the average CPU usage on all virtual machines, and you assign the super metric to a
cluster, the average CPU usage on all virtual machines in that cluster is reported as a super metric for the
cluster.
When the super metric aribute is enabled in a policy, you can also collect super metrics from a group of
objects associated with a policy.
Super Metric Functions
vRealize Operations Manager includes functions that you can use in super metric formulas. The functions
are either looping functions or single functions.
Looping Functions
Looping functions work on more than one value.
Table 36. Looping Functions
Function Description
avg Average of the collected values.
combine Combines all of the values of the metrics of the included
objects in a single metric timeline.
count Number of values collected.
max Maximum value of the collected values.
min Minimum value of the collected values.
sum Total of the collected values.
Looping Function Arguments
The looping function returns an aribute or metric value for an object or object type. An aribute is
metadata that describes the metric for the adapter to collect from the object. A metric is an instance of an
aribute. The argument syntax denes the desired result.
For example, CPU usage is an aribute of a virtual machine object. If a virtual machine has multiple CPUs,
the CPU usage for each CPU is a metric instance. If a virtual machine has one CPU, then the function for the
aribute or the metric return the same result.
Table 37. Looping Function Formats
Argument syntax example Description
funct(${this, metric =a|b:optional_instance|c}) Returns a single data point of a particular metric for the object to
which the super metric is assigned. This super metric does not take
values from the children or parents of the object.
funct(${this, aribute=a|b:optional_instance|c}) Returns a set of data points for aributes of the object to which the
super metric is assigned. This super metric does not take values
from the child or parent of the object.
Chapter 3 Customizing How vRealize Operations Manager Monitors Your Environment
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