[Networker] de-duplication
2008-11-05 00:46:58
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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