7.1 Specifying Instances
Some performance information is linked to a specific instance, such as a specific device name or CPU number, while other performance information applies generally to a computer or reflects an overall or average value. Therefore, some performance counters have instances and some performance counters do not.
For counters that do not have instances, you can leave the instance portion of the parameter out or you can specify _Total as the instance. For counters that do rely on instance information, you should specify a particular instance or _Total to return information for all instances.
In general, if you need to specify an instance, use the following guidelines.
|
Instance |
Value |
|---|---|
|
CPU |
CPU number. For example: 0, 1, 2 |
|
Physical disk |
Device name. For example: dad0 |
|
Network |
Interface name. For example: eri0 |
|
Printer |
Printer name. For example: lp01 |
You can view instance names for any computer’s system resources in the Operator Console by selecting an object icon in the TreeView pane, then clicking the Details tab in the List pane. The following is an example showing details for the Network Interface object:
