afaik, DD VTL's cannot use multiple streams - this is because of the
target-based de-duplication, and is also why EMC has you add many more
VTL drives than normal - in order to compensate for less streams. 

I think to a DD VTL, anything you send to it is just a datastream/data
to be de-duped once it gets there , so I'm not seeing how MSSQL could be
any different. :\     

cheers,
James 

-----Original Message-----
From: EMC NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] On
Behalf Of Venkat Tudi
Sent: Monday, January 03, 2011 11:52 AM
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: [Networker] DATADOMAIN AS VTL

Hi All,
My understanding of Datadomain as VTL is once configured each vitual
tape drive can only do single stream. But we had some EMC come in to
give us some briefing on SQL module and they mentioned that we can do
multistreaming.
So I double checked my configuration
SAVEGROUP parallelism is 0 (means write as many stream as the clients
give) Client Parallelism: 12 Target sessions on the Tape drive is set 4.
SAVESET is MSSQL:

But I am still seeing single stream.
I tested the same conguration to Physical Tape and I am seeing 4
streams.
Am I missing some thing or the guy gave the briefing is talking
something incorrect.


--
Venkat Tudi

To sign off this list, send email to listserv AT listserv.temple DOT edu and
type "signoff networker" in the body of the email. Please write to
networker-request AT listserv.temple DOT edu if you have any problems with this
list. You can access the archives at
http://listserv.temple.edu/archives/networker.html or via RSS at
http://listserv.temple.edu/cgi-bin/wa?RSS&L=NETWORKER

To sign off this list, send email to listserv AT listserv.temple DOT edu and 
type "signoff networker" in the body of the email. Please write to 
networker-request AT listserv.temple DOT edu if you have any problems with this 
list. You can access the archives at 
http://listserv.temple.edu/archives/networker.html or
via RSS at http://listserv.temple.edu/cgi-bin/wa?RSS&L=NETWORKER