File Server Migration - For ORG A Forest to ORG B Forest ( Need to create and Map Security Group automatically on new Migrated Folders - Please Help

Question

I have two forest With Trust works Fine .
I have file server in ORG – A ( Forest ) with 2003 R2 Standard
I have a File server in ORG  - B ( Forest ) With Windows server 2012 ( New Server for Migration )
I have 1000 + folders with each different permission sets on ORG-A. We are using Security groups for providing permission on the share Folders on ORG A
I need to Migrate  all the folders from ORG – A to ORG – B.
I am looking for an automated method of creating Security Groups on AD during the Migration, Once the Migration is Done, I can add the required users to the security groups manually.
Example.
Folder 1 on ORG – A has Security Group Called SEC-FOLDER1-ORGA
I need an automated method of Copying the files to ORG – B and Creating a new security Groups on ORG –B Forest with the same permission on parent and child Folders. I shall Add the users manually to the Group.
Output Looks Like
Folder 1 on ORG – B has Permission called SEC-FOLDER1-ORGB ( New Security Group )
Also I need a summarized report of security Group Mapping, Example – Which security Group on ORGA is mapped with Security Group Of ORGB

Answer 1

Hi,
I think you can try ADMT to migrate your user group to target domain/forest first. Once user groups are migrated, you can use Robocopy to copy files with permission - that permission will continue be recognized in new domain as you migrated already. 
Migrate Universal Groups
http://technet.microsoft.com/en-us/library/cc974367(v=ws.10).aspx
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