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Summing the statistics of multiple component monitors

Hi,

We have an application monitor template for XenApp Delivery Servers, which contains a component which collects the number of Active Terminal Services Sessions via WMI. This application monitor is assigned to 34 nodes, and provides the number of connections to each node at any given time.

I've been asked to now provide another component which gives the total number connections across all 34 assigned nodes (the latest statistic rather than historical data), so I'm trying to find a way of getting the sum of the statistics from the Active Sessions component on each node it is assigned to. Looking around I can't see an obvious way of doing this within the UI (but please correct me if I've missed something).

I could do this by creating a VBscript monitor to execute the WMI query against each of the servers in a loop, but this seems inelegant, since all the data needed is already stored in the DB. I'm wondering if anyone can suggest a better way to do it?

Thanks,

Paul

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aLTeReGo

There's a couple different ways of going about this. You could add a Multiple Object Chart onto a summary page and select the Active Terminal Services Sessions via WMI component monitors across all 34 servers and check the "Show SUM in data series". That's the simplest way.

The second option which is still not to difficult, would be to create a report in the report writer that sums the statistic across all servers and returns the current value. Then you can add that report as a resource to one of your summary views. I've attached an example report that shows the total "Pages/sec" across all servers that are running "Windows Server 2003-2008 Services and Counters" template.

Current Pages_Sec Across All Servers.zip

Paul_Yarwood

Thanks for the reply,

I'm probably doing something daft, but from an APM summary view (or a standard network summary view) I can only select from Nodes, Volumes, Interfaces or Groups. There isn't an option for Components / Applications I can see?

Paul_Yarwood

Sorry that needs clarifying.

When editing the Multiple Object View, I only get the options for Nodes, Volumes, Interfaces or Groups as below:

Anybody got any Idea's why?

Thanks for the tip on the report approach that works brilliantly.

aLTeReGo

The Multiple Object Chat wasn't supported in APM until the latest release, v4.2. Once you upgrade to APM 4.2 you'll be able to leverage the Multiple Object Chart resource for APM component and application statistics.