Joni,
 
You should be taking some how an online backup of the Notes nsf files and the 
Oracle databases.
 
The nsf files won't compress at all, so you won't gain any reduction in used 
space on the disks/tapes where the backups end up. 
 
And with an olnine backup of Oracle, either directly to TSM  or first to disk 
and then a file system backup to TSM, will contain only the used blocks in the 
Oracle data files. So no gain again with software compression on an Oracle 
server.
 
Generally you will be using more resources on the client when the compression 
is done over there. The achieved ratio can be found in the summary of the 
backup session (for a file system backup).
 
best regards,
Kurt

________________________________

Van: ADSM: Dist Stor Manager namens Joni Moyer
Verzonden: di 5/1/2007 8:44
Aan: ADSM-L AT VM.MARIST DOT EDU
Onderwerp: [ADSM-L] Ramifications of turning client compression on?



Hello All!

I am considering turning client compression on for our Lotus Notes Domino
and Oracle servers.  What should be looked at/considered before client
compression is turned on?  How do you monitor the impact of turning client
compression on?  Any ideas/suggestions are appreciated!  Thanks!

********************************
Joni Moyer
Highmark
Storage Systems, Storage Mngt Analyst III
Phone Number: (717)302-9966
Fax: (717) 302-9826
joni.moyer AT highmark DOT com
********************************


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