The display of historical data collected by PI (Performance Investigator) is controlled by the time pyramid.
One minute resolution is only kept for six hours.
If users are trying to look at data that is older than six hours the best resolution will be of 15 minutes (and that will only be available for three days after the event).
The current PI retention is as follows, and cannot be configured:
|Time Resolution||Retention Period|
|1 minute||6 hours|
|15 minutes||3 days|
|1 hour||2 weeks|
|6 hours||30 days|
|1 day||90 days|
|1 week||2 years|