The first question I would ask is why are you doing this?  If you hope
to reduce the amount of TIME it takes to do a backup, you won't.  If you
hope to reduce the amount of DISK SPACE in your disk pools, you will,
but at what cost.

In almost all cases (I don't say all because words like all or never
annoy me) compression is best done in hardware rather than software.  So
let your tape technology do the compression.

That said, in an all disk based TSM environment it may well make sense
to let clients do compression to reduce the amount of disk required.
Personally, I'm hoping for some clever SAN vendor to put compression
into their controllers so the hardware will do it for me.

Thanks,


Kelly J. Lipp
VP Manufacturing & CTO
STORServer, Inc.
485-B Elkton Drive
Colorado Springs, CO 80907
719-266-8777
lipp AT storserver DOT com

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Joni Moyer
Sent: Tuesday, May 01, 2007 12:44 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: [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
********************************