Are backupexec and tsm used for the same client at the same time. 
If so I believe that one problem, or at least is the reset of the archive bit 
by backupexec. I seem to remember that this would trigger a backup by tsm. 


In general I believe that tsm will backup a file if the file metadata/catalog 
data changes. I wonder if this is also the case with the use of the subfile 
feature. 

Please correct me if I am wrong this is old fuzzy memory as I have not check in 
the recent past. 



len 

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of 
Bill Boyer
Sent: Thursday, March 18, 2010 2:34 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: [ADSM-L] TSM client checklist for backup.

Is there a list of what the TSM client checks for on a file to determine if
the file needs to be backed up? I have a client that is running both
BackupExec and TSM on servers and he's telling me that TSM backs up way more
than backupExec and 'what the users have changes.' Using their words.

This customer also has TPC Data and is using the Files as Risk report to
estimate how much data needs to be backed up. But I think that just goes on
the archive bit and the last modification date/time of the files. Which is
only a fraction of what TSM uses to determine a file's eligibility for
backup.

TIA,
Bill Boyer