I have been assigned a new project and would really like to hear from those here about the best way to handle this.

The task -
Currently all users have their home drive mapped to K: the mapping is \\OldServer\Username$. Profiles are mapped \\OldServer\Profiles$\Username.pds

All of this is set in AD, and is not scripted

I need to move all of the Home Drives and Profiles to a new server, but do to the # of users we are going to break it up further
\\NewServer\A\Username - \\NewServer\Z\Username

Profiles will follow the same structure

Currently the share is at the username level, The new server it will be at the root level and then will use deep mapping.

Some of the issues that I have thought of, are of course how to handle the copying of the permissions to ensure that whatever ACL is set currently is copied to the new folder, and how to handle "file in use" issues, as we are 24x7 shop.

Along with moving all of the data, I have to update everones AD account to point to the new location.

This project involves moving approx 5 TB of data (all flat files though). so any pointers and tips that you are highly appreciated.
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