Use the View Metric Snapshot page to display the pertinent information regarding the metric snapshot. If the Warning Threshold or Critical Threshold column entries are blank in the Metric data table, then there was no metric data available from which thresholds could have been calculated.
To change the metric snapshot, access the Edit Metric Snapshot page and edit the information for that metric snapshot.
When the metric snapshot was created, the dates and times that were chosen should have reflected the dates and times during which target performance was acceptable for a typical workload.
Creating, Editing, Viewing, and Using Metric Snapshots
Enterprise Manager Information Roadmap
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