Missing or Invalid Data

Data collected by Capacity Advisor is used in the scenarios you create and manipulate. During an interval when no data was collected, the data is considered missing (data may not have been collected, for example, because a system was down during data collection). Invalidated (or invalid) data is data that the user has marked as invalid.

For each metric about a system or workload, if a significant amount of data is missing or invalid, the metric is followed by asterisks with the following meaning:

Thus, metrics without asterisks are considered useful and reliable for analysis.

	NOTE: In some situations, where time or time zones on a server are incorrect, it may appear that data collected has only old data. For more information on this topic, see the section on Handling Old Data in the Capacity Advisor Error Messages appendix in this document.