Try this select for the amount of data backed up.  Adjust the start_time to 
suit your needs.
 
select entity, sum(bytes)/1024/1024/1024 as GB from summary where 
start_time>'2008-02-28 00:00' and activity='BACKUP' group by entity
 
Check out the 'query occupancy' command for the amount of data the TSM server 
holds for a client node.
 
 
Orville L. Lantto
 

________________________________

From: ADSM: Dist Stor Manager on behalf of Wesley Nascimento Introvigne
Sent: Thu 3/27/2008 11:43
To: ADSM-L AT VM.MARIST DOT EDU
Subject: [ADSM-L] Amount of data stored



Hi all,



Someone would have a script or a command where I could know the amount
of data that were downloaded(backup) from a server within a month and
another to learn the amount of data that already exist on this server.



            Thanks