Hi, Sabar.

I couldn't find a TS7569G via Google, but on the TS7650G, also a
deduping VTL, after data goes through the factoring (dedup) algorithm it
is run through a compression algorithm.  You probably won't see much
deduplication, but on the first backup you should see a decrease in size
similar to the decrease you would see from the compression on a tape
drive.

Regards,
Alex

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Sabar Martin Hasiholan Panggabean
Sent: Thursday, March 19, 2009 5:10 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: [ADSM-L] VTL and Dedup ( TS7569G)

Hi,


Does anyone here has been implementing or know how Dedup works in TSM
using TS7569G ? Let say I have 100 TB of data and backup to this VTL. On
the 1st attempt of backup / full backup, will this data size decrease on
the VTL

BR,

Martin P


This message (including any attachments) is intended only for
the use of the individual or entity to which it is addressed and
may contain information that is non-public, proprietary,
privileged, confidential, and exempt from disclosure under
applicable law or may constitute as attorney work product.
If you are not the intended recipient, you are hereby notified
that any use, dissemination, distribution, or copying of this
communication is strictly prohibited. If you have received this
communication in error, notify us immediately by telephone and
(i) destroy this message if a facsimile or (ii) delete this message
immediately if this is an electronic communication.

Thank you.