How to capture Historical ICA RTT data.
Currently,only one day's data for ICA RTT is retained.
You can find this data in MonitorData.SessionMetrics table in SQL Database.
To check more historical data, you will need to leverage Performance Analytics. To find more information about performance analytics, please review our online document here - https://docs.citrix.com/en-us/performance-analytics.html
https://docs.citrix.com/en-us/performance-analytics/user-analytics/intermediate-drilldown.html#session-responsiveness-subfactors