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Move deduplicated data to another disk


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#1 flesz

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Posted 26 June 2016 - 05:37 AM

Hi Guys,

 

I wonder what is the best way to copy deduplicated data from one volume on windows 2012 R2 to another volume on the same server without data rehydration?

 

I have a physical server with local disks which has a deduplicated volume.  The volume is getting low on disk space so I bought a synology NAS where I enabled iscsi lun and attached it to the server. I would like to move all the deduplicated  data to that new volume without un-deduplicating it. Is that possible?

I tried simple copy , but it appears it is not working. 



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#2 Wand3r3r

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Posted 26 June 2016 - 12:03 PM

"I have a physical server with local disks which has a deduplicated volume."

 

You mean they were in a raid 1 array? No such thing as deduplicated.  If you broke the mirror [raid1 ]then you have duplicate copies of the same.

 

If you mean by deduplicated you broke the mirror set... I have to ask why?  Would not result in more space and you lost disk failover which makes you only as good as your last full backup.

 

Please clarify.  Thanks



#3 flesz

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Posted 26 June 2016 - 01:00 PM

Hi,

 

I meant windows feature called deduplication. That has nothing to do with RAID.

 

I enabled deduplication on one of the volumes on the server. I want to move deduplicated data to another volume attached to that server.



#4 Wand3r3r

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Posted 28 June 2016 - 09:39 AM

My understanding is you will need to undo the deduplication and then move the data.  Then you can dedup the nas volume

 

https://technet.microsoft.com/en-us/library/hh848440.aspx

 

Though you may have to backup and delete data on the volume to get enough disk space to do the operation.



#5 High_Technology

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Posted 08 August 2016 - 08:19 AM

Wooah OK!


Got it!






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