Click the "Save" button (floppy disk of course!) in the top of the middle column. Select only the "Volume Usage by Storage Type" checkbox, pick your output type, select a location, and click OK...   [IMAGE]
The gridview at  "Compellent Enterprise Manager > Storage > Storage Types > Assigned Redundant > Volumes" [IMAGE]displays separated tier usage for each volume. As I need to be able to report on the tier split at the volume level (same information in this view) but I don’t see an option for this in reports, how can one extract this information as a csv file? 
Reporting Volume Tier Usage in Enterprise Manager