The metric pie chart allows you to create a pie chart view of the
perfdata gathered within Opsview Monitor for Service Checks metrics:
Pie charts are great for comparing Hosts that are using the same Service
Check and metric, i.e. comparing which Hosts are using the most network
bandwidth, which Hosts are using the most disk space, etc.
The pie chart segments can be clicked on, which will load a contextual
menu displaying the Host, Service Check, metric and value fields – along with
the percentage of the pie chart each slice has, and a small sparkline graph
displaying historical performance:
There is a ‘legend’ icon in the top right-hand side, that allows you to
view what each color is, i.e. ‘Blue is ‘warninghost’’, etc.
There is also a data drop-down in the bottom left-hand side, which allows
you to say ‘What did this pie chart look like a week ago?’.
The data in the top right hand side will list the number of slices, and
also the total data – i.e. if each slice is ‘Number of connections’, then the
number will be total number of connections across all slices.
Metric Pie Chart configuration allows you to choose whether you wish to
have slices based on Host, Service Checks or Metrics:
In the example above, we selected ‘Slices based on: Host’, chosen the
service as ‘Unix Memory’ and the metric as ‘utilisation’. We can see there are
14 slices, i.e. 14 Hosts have that Service Check/Metric. As such, we have set
‘Show top: 15’ which will show all of the slices. If I only wanted to see
the top five Hosts, in the context of memory utilization, I could choose ‘Show
top: 5’ instead.