the view is the [VeeamBackup].[dbo].[ReportSessionsView].
This view is used by the Realtime Statistics menu (Right Click on a Backup Job) to get the main data of this dialog: the values are in bytes, so, if you need MB or TB, you simply need to do the math (as the Veeam B&R GUI do).
I've simply used the SQL Server Management Studio to query this view about all my jobs executions between 4 PM to 5 AM (my nightly backup window); then I've exported the data on CSV on do the plot for my boss on Excel.
SELECT TOP 1000 [id]
where [creation_time] > '2012-03-18 16:00:00.000' and [creation_time] < '2012-03-19 07:00:00.000'
order by [creation_time] desc;
The column name are easy to read: by the way, "very great job!!!" to the DB team.
I hope this help everyone on the forum to answer the question: how many MB/GB/TB Veeam read every night from the SAN? The short answer: only the changed ones. But sometimes (especially for the IT bosses) numbers matters.