Data Deduplication and File Backup

Question

Hello all,
This is my first question here in the forum. I just migrated one of our server from Server 2008 R2 to Server 2012 Standard R2. I use Freefilesync to backup a couple of network storages that was attached to the server 2008 and now it is attached to the Server
2012. I would like to know if I apply data deduplication on the network storage that are now attached to the Server 2012 would that affect the files on my backups? How would that work? Thanks

Answer 1

Thank you again. One last question: So, the storage savings I will have with dedupe won't be carried out to my backups? Thanks?
Space would be preserved it's just your data MSFT would "unpack" in the middle of the migration process. So sequence of actions looks like this:
1) Data generation tools puts bunch of files on dedupe-enabled volume.
2) MSFT scrubber process kicks in and "packs" data from 1) to now smaller amount of used blocks.
3) Copy process takes data from 2) and "unpacks" it in memory and copies it to destination volume, UNPACKED.
4) MSFT scrubber process kicks in on a destination volume to do basically the same it did in 2) for source volume.
So smart implementations like one done by HP and their StoreOnce would skip steps 3) and 4) as copy process would move indexes and hash<->data pairs. MSFT cannot do this (at least for now).
For reference:
HP StoreOnce Global Deduplication
http://h18006.www1.hp.com/storage/pdfs/hpstoreonce.pdf
Global Data Dedupe HOWTO
http://searchdatabackup.techtarget.com/definition/global-data-deduplication
Hope this helped :)
P.S. I'm NOT working for HP or whatever :)
StarWind VSAN [Virtual SAN] clusters Hyper-V without SAS, Fibre Channel, SMB 3.0 or iSCSI, uses Ethernet to mirror internally mounted SATA disks between hosts.