siobhanellis wrote:
> 
> de-duplication at target, if you are using NetWorker, will pretty much fall 
> into using EDL (EMC Disk Libraries). Now they have OEM'd Quantum's VTL 
> software they have de-dupe on there. However, at the moment, they do not have 
> the storage node capability for NetWorker, ironically only NetBackup.
> 


It may also be possible to use something like the Cypress (GreenBytes) NAS and 
use its internal de-dup/compress for adv_file devices (over iSCSI).  Networker 
wouldn't know, or care.

http://green-bytes.com/cypress.html

We're trying to get one here in order to test that theory, since it *may* be 
able to replace the two *racks* of StorageTek Flex disk we use for adv_file 
today (we have a Tier 4 DBO).

Of course, the sales folks got real silent when I mentioned using it in 
environments with pre-compressed data (our Sybase dumps, which is about 20 TB 
currently - about half the 'real' disk space of the Thumper chassis that 
Cypress uses).  I wanted to know how their de-dup extensions to ZFS would work 
out here, since it was a proprietary change to the code.

--TSK

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