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netapp snapmirror - Two volumes on the same controller

Posted on 2012-09-07
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Hello Everyone,

We have a netapp FAS202 and I want to know if I can use snapmirroring to move files from volume A to volume B within the same controller?  If I can, will it it affect other users connecting to the volume?

Thanks,

Bill
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Question by:bjennings
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by:Paul Solovyovsky
ID: 38377168
This should work just fine.  We do this all the time to move data between aggregates.  What is the purpose of this?
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by:bjennings
ID: 38377286
I have a cifs share with user files and it is getting full, so I created a second cifs share and I want to move over about 400 gigs of files and I thought snapmirror would be the quickest way to do it.
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by:Paul Solovyovsky
ID: 38377299
Are they in different aggregates?

Keep in mind snapmirror will copy entire volume, it will not copy data into your a current volume, if you want to do this you can use robocopy to seed during the day and do a final one at night and switch the users over.

If they're in the same aggregate you can just grow the current volume, if they're in different aggregates it depends on what you want to do.
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Author Comment

by:bjennings
ID: 38377335
I tried growing the volume, but I have dedup running and their are limitiations on how big the volume can grow.  I thought I could create a new volume on the same aggreate and have snapmirror move over all the files, but if I can't do that, may I can create a new volume on our second controller.
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Paul Solovyovsky earned 1200 total points
ID: 38377415
If you're going to do dedeupe you're still going to have the dedupe limit (2GB I believe?)

What I would do is break out some of the shares to a different volume using robocopy and this way you have two volume each having half (or as close to half) and you can still do dedupe on each
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Author Closing Comment

by:bjennings
ID: 38377715
That is what I will do!  Thanks so much for your help!
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