Specifications
To avoid building trends from scratch, you can base new trends on
already existing ones. Choose a trend under Explore > Content, and
then modify the evaluation criteria to suit your needs.
The Trend creation screen consists of the following tabs:
l Scope: On this tab, the item type is automatically selected, and the Search
Query field is pre-populated according to the search query you used.
l Criteria: To trend the number of search results over time, select Search
result count. To pull data out of each search result, instead of just using the
count of search results, you have two options:
l Select Attribute in the Criteria tab, and then type the name of the
attribute you want to base the trend on. The autocomplete function
suggests options based on what you have typed so far. To select from
all the available attributes, click Find.
l Use XPath in the Attribute field. This requires familiarity with the
SolarWinds Virtualization Manager configuration model, but provides
a powerful way to do math operations on multiple values to return the
attribute value.
Whether you use XPath, or select an attribute, make sure that you select the
appropriate unit from the Units list for the data you want to pull. Also make
sure that you choose a value from the Aggregation Function list to specify
whether you want to count the number of values, the total (sum) of the
values, or the minimum, maximum or average of values.
l Segmentation: To create a trend with multiple lines that are segmented by
some attribute, type the name of an attribute in the Segmentation field, or
click Find to select from the list of available attributes. Each unique value in
the Segmentation field results in a different line in the trend. For instance,
to see the total disk space used for each operating system, create a
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Creating trends