In regard to: RE: [Networker] Data Domain in mixed BOOST/VTL mode?, Lemons,...:

This certainly will work.  EMC tests this configuration to ensure that
it works and works well, in fact.  The same Data Domain system can
'ingest' VTL over Fibre Channel, and DDBOOST, NFS and CIFS over Ethernet
simultaneously.

Thanks Terry!

I knew it's a supported config, I'm just wondering what the trade-offs
are.  Since I have no experience with DD yet, it's hard for me to know
whether it's a good idea to use it in mixed mode.

For example, EMC pre-sales support has indicated that there may be as much
as a 20% performance hit on the DD when operating in mixed mode, but the
documentation they found on that didn't elaborate at all.

It's those type of gotchas that I'm trying to suss out so I can make an
informed decision.

Tim

-----Original Message-----
From: EMC NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] On 
Behalf Of Tim Mooney
Sent: Saturday, April 06, 2013 2:36 AM
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: [Networker] Data Domain in mixed BOOST/VTL mode?

Any gotchas or caveats for using a Data Domain in "mixed mode", where some 
hosts use BOOST and some access the DD as a VTL?

We don't have a Data Domain yet, but there's a good chance we'll be replacing 
our traditional tape library with one by mid year.  Before that happens, I 
would take our NetWorker server (on RHEL 6.4 x86_64) to NetWorker 8.0sp1 or 
later, and I would get our clients updated to 8.x as well.

Our Networker server and the Data Domain will have 10 GiB connectivity, but 
most of the backup clients currently just have 1 GiB ethernet.  Our largest 
clients have 4 GiB FC SAN connectivity, though, so our SAN folks are advocating 
having those clients access the DD as a SAN-based VTL, so that backups and more 
importantly restores can utilize the higher-speed
4 GiB SAN fabric.  The idea makes sense, but I'm a little concerned about what 
caveats, gotchas, or complexity this will add to both the DD config and the 
NetWorker config.

I'm assuming I'll need a "SAN Storage Node" license for each SAN client that 
wishes to directly access the DD as a VTL, or is that not the case?

Any tips or words of wisdom that people could provide would be greatly 
appreciated,

Tim

--
Tim Mooney                                             Tim.Mooney AT ndsu DOT 
edu
Enterprise Computing & Infrastructure                  701-231-1076 (Voice)
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