You can use the standard Space Usage dashboard to identify large data sources and workbooks. Here's how:
- Click on the Space Usage tab
- Select one of the Projects in the Space Used By Project panel (top right)
- In the pop-up dialog select View Data icon
- Click on Underlying and select Show all columns
The Created on field shows when the workbook or data source was created but what does the accesssd_at column show? In some cases this shows a date and in some cases Null which suggest some of the workbooks have never been viewed which is almost certainly incorrect. I'm guessing tableau only keeps history for a limited period of time but for how long? Is this field Null if the workbook hasn't been accessed within the current history?
Note: You can actually select all Projects in the panel mentioned in 2. above then use 3. and 4. to download all data and visualise space by Site, Project, ...etc. I know you can now do this using the readonly user but this is a quick and easy alternative.
See: http://onlinehelp.tableausoftware.com/current/server/en-us/help.htm#adminview_postgres.htm?Highlight=history
Is 183 days the answer?
