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Decisions to make before you view performance data

You can view performance data in several ways. You should make a few decisions before you view the data.

You should decide the following before you view performance data:

Decision Considerations
How do you want to retrieve and display the data? You have two choices:
  • You can collect and view a set of data for a specific time period.

    If you choose this option, you can view data for several objects and instances at a time.

  • You can view continuously updated data.

    If you choose this option, you can view data for only one object and one instance at a time when you use the statistics show-periodic command.

For which objects do you want to view data? You need to specify at least one object for which you want to view data.
Do you want data from all counters or from specific counters? The default setting shows data for all counters in an object; however, you can specify specific counters to get the exact data that you need.
Do you want data for all instances of an object or for specific instances?
  • If you collect data for a time period, the default setting shows data for all instances; however, you can specify one or more instances.
  • If you view continuously updated data and specify any object other than cluster, you must specify an instance when you use the statistics show-periodic command.
Do you want data for the entire cluster or do you want to scope the data? The default setting shows data for the entire cluster; however, you can scope the data to a specific SVM or a specific node.