Page History
...
SQL Diagnostic Manager updates the data shown in the thumbnails view of the group list according to the interval entered in the Status and Alerts Refresh field on the Console Options window, accessed by clicking Tools > Console Options. This information is collected from the last data point stored in the SQLDM SQLdm Repository.
By default, the group list displays basic statistics for each of the SQL Server instances monitored by SQL Diagnostic Manager. This information includes the following statistics for each instance:
...