Thanks for that info.

Just to clarify though.  If your master is also a media server (as it usually 
is) you don't have to have a separate media server to talk to the non-NBU 
appliances.    

In our environment we have the master/media and multiple other media servers 
that all use storage units defined using NFS mounts to the various appliances 
we've used (DD, DXi and ExaGrid).  That is to say we can access each appliance 
from all media servers rather than requiring a separate media server for each.  

We don't use OST here because of the additional NBU license required so it may 
be different in an OST setup.


-----Original Message-----
From: veritas-bu-bounces AT mailman.eng.auburn DOT edu 
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of tsimerson
Sent: Tuesday, December 22, 2015 9:02 AM
To: VERITAS-BU AT MAILMAN.ENG.AUBURN DOT EDU
Subject: [Veritas-bu] HP Data Protector vs Veritas Net Backup

One thing to keep in mind with the major difference between a NetBackup 
appliance and a dedupe storage appliance (Data Domain, DXi, Exagrid, etc.):  a 
NetBackup appliance is a media server that can do dedupe storage but the other 
appliances require a media server in front of it.

When all is said and done, a NBU appliance and a dedupe appliance end up 
working about the same.  I usually tell customers that the main difference 
between them boil down to the following:
* The requirement of a separate media server for a dedupe appliance as noted 
above.
* Through the OST feature set, almost all dedupe appliances support the same 
capabilities as a NetBackup appliance.  The only missing feature from a dedupe 
appliance is client-side dedupe.  And I suspect that Veritas will keep that one 
in their back pocket always.
* Dedupe appliances can generally scale better than the NBU appliances.  A 
NBU5230 will go to 148 TB and a NBU5330 will scale to 229 TB (but in 114 TB 
increments) which negates this statement some but the granularity of scaling is 
better for the other appliances.

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