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Albert WidjajaFlag for Australia

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The best way to migrate large 3.9 TB file server into another one ?

What is the best way and safest to stage copy a big file server from the old one (Win 2008) into the new one (2012 R2) ?

My plan is to copy the old 3 TB+ Windows Server 2008 E:\ drive content (homes and File Server directories safely into the new Windows Server 2012 R2 file server with 8 TB D:\ drive while maintaining the file permission and structure.

So the first weekend will be the initial copy
second weekend will be the delta (difference) only and turn off the old file server. (using the same script or tool)

Can I still use Microsoft File Server Migration Toolkit (http://www.microsoft.com/en-us/download/details.aspx?id=10268) or is there any better or safeway to do that ?

please share your thoughts and suggestion here.

Thanks
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The drive is a mapped network drive which use Group Policy Preference to the file share \\FileShare\Homes\username as H: drive and \\FileShare\Data\Folder1 as F: drive.

I need to maximize the throughput of the copy while allowing the file and directory permission intact. so what's the best way of doing it ?
ok, so my plan is to run the Robocopy from the Windows Server 2012 R2 as follows:

robocopy \\oldFileServer\share \\newFileServer\share /s /copy:datsou /dcopy:t /xo /r:5 /w:0 /log+:robocopy.log /tee /mt:64

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is that correct ?
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Spravtek,

what was the script that you use ?
do you mind to share it here ?
I would love to share it with you, but it's on my work laptop and I can't access it at the moment, I can provide it tomorrow though, sorry about that.
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Is this 3 TB storage is originally SAN LUNs ?

If yes, you can have another option to disconnect SAN from source and connect it to target
Turn it into a VHDX using DISK2VHD and you'll be ready for virtualization.  Would preserve everything and copy as fast as possible at the block level.
Hi All,

The existing LUN is physical RDM NTFS presented to the VMware virtual machine from EMC storage array.
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Mahesh, wow that was never heard before.
My plan is to copy the content of Windows Server 2008 NTFS LUN into the new Windows Server 2012 R2 file server LUN NTFS ~ 6 TB but with GPT boot record.

So I  guess I'll keep on with the Robocopy utility.
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Hi all,

just an update from this blog post below: http://blogs.technet.com/b/filecab/archive/2008/07/31/robocopy-mir-switch-mirroring-file-permissions.aspx

I've customized my script which contains two lines as per below:

robocopy.exe "\\OldFileServer\DATA\" S:\Apps *.* /MIR /SEC /SECFIX /xf "Thumbs.db" /xd "System Volume Information" /xd "Recycler" /xd "$RECYCLE.BIN" /np /nfl /ndl /r:0 /w:0 /tee /log:"F:\Temp\result.log"

robocopy.exe "\\OldFileServer\DATA\" S:\Apps *.* /e /copy:S /IS /IT /tee /log+:"F:\Temp\result.log"

But somehow the permission is difference in the new file server compare to the old file server?

The source file permissions is all missing and replaced with the inherited permission from the S: drive ?

The script is executed on the new Windows Server 2012 R2 file server.
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Snagajob IT

You may want to check out the File Server Migration Toolkit from Microsoft

http://www.microsoft.com/en-us/download/details.aspx?id=10268

This will create the shares and carry permissions to the destination folder. In addition you can run several times then perform a final sync when you are ready to complete the migration process. It even disables the source share.
Thanks for the additional response PM :-)