UE-V supports storing user data on any writable share.  However, certain additional criteria must be met:

  • The volume must be formatted with an NTFS file system.
  • The share may use Distributed File System (DFS) replication, but Distributed File System Replication (DFSR) is specifically not supported.  See
    http://blogs.technet.com/b/askds/archive/2010/09/01/microsoft-s-support-statement-around-replicated-user-profile-data.aspx for details on why this is so.  Distributed File System Namespaces (DFSN) are supported.
  • Because SYSVOL uses DFSR for replication, it is not possible to use SYSVOL for UE-V data file replication for the reasons listed in the blog post above.
  • The share permissions and NTFS ACLs must be configured as specified in http://technet.microsoft.com/en-us/library/jj680024.aspx.
  • High availability can be guaranteed through a combination of using offline files and file server clustering in conjunction with the UE-V agent to provide access to copies of user state data in the event of communications failures.
  • Both Settings Storage Path data (user data) and Settings Template Catalog templates can be stored on clustered and/or DFS-N shares.