Reporting and Trending shows "No data collected at this time" for some views and metrics for some time ranges (e.g. Last 1 hour, Last 6 hours, etc.)
Verify the correct Spotlight Statistics Repository is being used. Also collection frequency and schedule varies for different metrics. Spotlight's data collection schedules determine how often the Diagnostic Server collects data from monitored servers. This can be changed via View | Monitoring Configuration | Schedules. For further details on this option, please refer to "Schedule Data Collection" topic in the online Help.