The performance counters available for display are controlled by rules in management packs. Not all of the rules responsible for data collection are enabled by default and this is why we don’t see a list of counters to select from in the views listed above.
To get a list of counters for these views we need to enable data collection by setting overrides on performance collection rules, and this is done in the Authoring Space.
Note: Enabling performance collection rules will increase the size of the Essentials database. If you are using SQL Server Express, collecting additional performance data may reduce the number of days of historical data available for reporting.
Let’s work through an example and enable data collection to populate the Windows Server Performance graphs we listed above.
For the Disk Performance dashboard view we will need to override the following rules:
- Collection Rule for the Average Disk Queue Length
- Collection Rule for Current Disk Queue Length
- Collection Rule for Average Disk Seconds Per Read
- Collection Rule for Average Disk Seconds Per Write
For the Disk Utilization dashboard view we will need to override the following rules:
- Collection Rule for Disk Bytes Per Second
- Collection Rule for Disk Reads Per Second
- Collection Rule for Disk Writes Per Second
For the Memory Utilization (Physical) dashboard view we will need to override the following rules:
- Memory Pool Paged Bytes
- Memory Pool Non-paged Bytes
For the Network Adapter Utilization dashboard view we will need to override the following rules:
- Network Adapter Bytes Received per Second
- Network Adapter Bytes Sent per Second
To override a rule to enable performance data collection:
- Go to the Authoring Space
- Expand Management Pack Objects
- Select Rules
- Click Change Scope
- Click Clear All
- Type Windows Server in the “Look for” box
- Place a check mark next to all targets starting “Windows Server”
- Click OK
- Find the rule to Override
You can either scroll through, or use the “Look for” functionality to filter the list.
In this case, use one of the following words for each category: logical, memory, network
You can only use one of the filter words at a time
- Select the rule, then from the Actions Menu, select Overrides -> Override the Rule -> For all objects of type: Windows Server 2003 Logical Disk
For the Memory and Network rules the type will be slightly different
- Check the box in the Override Column next to Enabled.
- Click Apply
- The Effective Value for the Enabled Parameter will change from False to True
- Click OK
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