Piece of cake !  but depends...
1) need big client box
2) need data such that multiple concurrent sessions may run
3) go to a diskpool...
 
We can back up a 3.4 TB data base in 12 hours...
E10K with 64 processors, 25 get dedicated to a TSM TDP/R3 backup (25
concurrent sessions), run client compression, go to diskpool that is about
900 GB, across Gig Ethernet.  
Backup speeds (thruput) of up to 100+ GB/hr of compressed data.
If you only have a 100 Mb/sec Fast Ethernet, your max thruput will be cut
back to 41-ish GB/hr compressed client data.
Our SAP data bases have (over the last 5 years) seen 3.8/1 compression using
tsm client compression.

Nice thing here is that... your backup server may be located just about
anywhere, like across town at a disaster recovery site ;-)

Dwight E. Cook
Software Application Engineer III
Science Applications International Corporation
509 S. Boston Ave.  Suite 220
Tulsa, Oklahoma 74103-4606
Office (918) 732-7109



-----Original Message-----
From: Sascha Braeuning
[mailto:Sascha.Braeuning AT SPARKASSEN-INFORMATIK DOT DE]
Sent: Thursday, August 22, 2002 1:36 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Backup of 300 GB Data within 12 Hours


Hi,

what is your opinion about backing up or restoring 300GB data with TSM
within 12 hours from one client? Possible or not? Do I have to use a SAN
that I get acceptable transfer rates? If there is anybody out there who
backs up such a big amount of data:

How is your "TSM"-area constructed? (e.g. Server-type, LAN, SAN ...)

MfG
Sascha Bräuning


Sparkassen Informatik, Fellbach

OrgEinheit: 6322
Wilhelm-Pfitzer Str. 1
70736 Fellbach

Telefon:   (0711) 5722-2144
Telefax:   (0711) 5722-1630

Mailadr.:  sascha.braeuning AT sparkassen-informatik DOT de