Changing Storage for DFS on windows 2008 R2 cluster

Hello,

I need to know the recommended steps that I should follow to migrate the data of the file services to achieve the minimum impact on the end users. Here're the details:

We have Domain based DFS on Windows 2008 R2. We use this DFS only for single name space, no replication groups are there (i.e: there's only single copy of the data). The data itself is stored on a shared storage and accessed through a 2 active/active node failover cluster. To be more clear, we have two file servers acting as active/active nodes in a cluster and has DFS configured on them.

Also, it's worth mentioning that all users are having offline copies of their files (using the DFS names).

Now, we need to move the data to a larger and faster storage. what will be the steps to follow from the DFS, Cluster and Windows prospective??

Knowing that we decided to use the Backup/Restore way (we disqualified both robocopy and FSMT).

My suggested steps are as follows:

• Export NTFS Permissions

http://social.technet.microsoft.com/wiki/contents/articles/408.how-to-back-up-and-restore-ntfs-and-share-permissions.aspx

1. Export DFS Settings

Recovery process of a DFS Namespace in Windows 2003 and 2008 Server

dfsutil /root:\\domain.com\shared /export:shared.xml

dfsutil /root:\\domain.com\shared /import:shared.xml /set

1. Export Cluster Settings

Understanding Backup and Recovery Basics for a Failover Cluster

http://technet.microsoft.com/en-us/library/cc771973.aspx

1. Confirm full backup has been taken
2. System state backup for both File servers and DC servers
3. Take incremental backup
4. Stop the DFS
5. Bring the new partitions up on the servers
6. Format the new partitions
7. Restore Normal followed by incremental on new partitions
8. Stop Windows cluster.
9. Rename old drive letters
10. Rename new drive letters with the old ones
11. Start Windows Cluster
12. Add the new drives to the cluster.
13. Start DFS

Your support will be highly appreciated..