We haven't used the NBU native deduplication yet so can't advise on
that.   However, your comment about not needing dedupe appliances yet
and the mention of CX4-120 (I'm assuming this is a Clariion array from
EMC) made me want respond.  

Dedupe appliances (at least the ones from Data Domain[now EMC]) allow
for replication between sites.  Since there are different sized DD units
it might even be possible to have smaller ones at the remote locations
all replicating to a larger one in your central location.   You'd have
to check with them on that.

Clariions are good for holding lots of storage but aren't incredibly
fast unless you're using the fibre drives rather than the ATA ones.
Their SANCopy software has limits that made us decide we couldn't use it
when we were migrating a couple of years back.   I doubt it has changed
that much.  You want to look into its capabilities before planning on
using it for replicating to a central location.

-----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 santoyx
Sent: Tuesday, December 28, 2010 8:46 AM
To: VERITAS-BU AT MAILMAN.ENG.AUBURN DOT EDU
Subject: [Veritas-bu] Best architecture for deduplication with NetBackup

Hi guys.

I've been studying the NetBackup to understand what would be the best
architecture to fit my needs but I'm confused with dedup features of
NetBackup 7. I started reading the deduplication guide until it sad me
that the PureDisk is the best approach. I'm really confused.

My scenario is the following:
I have nine remote offices, which should backup fileserver, MSSQL 2008
and Hyper-V VM's locally using source deduplication. Then I'd like to
replicate the backuped data to my central DataCenter.
However I'd like to keep the backup/restore capabilities of remote
offices independent from the central DataCenter, ie, the remote officew
should restore their data even if there is no link with the central
DataCenter or if I lost the replicated data at the DataCenter.
Besides I'd like that this replicated data to be deduplicated again at
the DataCenter among all the nine remote offices, deduplicating before
sending the data, if possible.

I have my own storage (CX4-120) at each remote office so I don't need a
dedup appliance with storage within.

What would be the best architecture to get all this? One master server
at each remote office and the same number at the central DataCenter?

Thanks.

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