Hi Jeff.

Although I have a CX4-120 (yes it's a EMC CLARiiON) I will not replicate the 
data using a storage feature.  I want to use the Netbackup to do that 
replication. That's why I won't use a appliance like the Data Domain.

-- ORIGINAL MESSAGE --

Best architecture for deduplication with NetBackup 
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.

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