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1、Configuring DFS in Windows Server 2012Contents:IntroductionCreating Bare DFS Root StructureCreating a New DFS NamespaceCreating LinksCreating Replica SharesTesting Share ReplicationCreating a Replica DFS RootAdditional NotesIntroduction:Consider a largeenterprise networkwith several servers and nume
2、rous shared data spread across those servers. The more servers there are and the more shares each has makes it more tedious and frustrating for users to readily and easily locate the resources they need. Users may be required to remember the names of numerous shares and exactly which server a share
3、is on.In this situation, users may have difficulty keeping track of what shared data is where (even with the help of mapped drives).What if the task of keeping track of what shares were where was simplified for the user. This would ease user access to shares? In addition, what if some redundancy was
4、 built into the shared folders so that we have multiple copies of Share1 spread across several servers, and similarly multiple copies of Share2 and so forth? Then, if one server fails or one share gets corrupted we have a backup copy, and if any copy share could be accessed automatically upon a fail
5、ure, we have seamless support for the share structure. Add to this a Round Robin type access to the duplicated shares, and we also have a distributed load.Users can now access a single hierarchy created by DFS, which can also provide share duplication and load distribution. Above, Share1, Share2, an
6、d Share3 are distributed. Share4 Share9 are not yet distributed.DFS offers the following benefits: Shared folders on a network appear in one hierarchy of folders created by a DFS Root with links. This simplifies user access. Fault tolerance is an option by replicating shared folders. Uses the Micros
7、oft File Replication Service (FRS). Load balancing can be performed by distributing folder access across several servers.There are two DFS models as follows: Standaloneo No Active Directory implementationo Can implement load balancing, but replication of shares is manualo DFS Root cannot be replicat
8、edo DFS accessed byServer_Name.Domain_NameDFS_Root_Name Domain-basedo Available only to members of a domaino Can implement fault tolerance by Root and Link replication and load balancing, and replication of links and root is automatico DFS accessed byDomain_NameDFS_Root_NameDFS Topology: The DFS roo
9、t (a table of contents)o Main container that holds links to shared folderso Folders from all domain computers appear as if they reside in one main folder DFS links (pointers to shares)o Designated access path between the DFS root and shared folders Replica sets (targets (duplicated shares)o Set of s
10、hared folders that is replicated to one or more servers in a domainCreating Bare DFS Root Structure:To start the process of creating a DFS hierarchical structure you first need to install DFS and create a DFS Namespace with a Root. This needs to be undertaken on each server that is to participate in
11、 the DFS structure i.e. each server that will host shared folders that will be replicated via DFS.In Windows 2012 Server DFS is installed via the File and iSCSI Services role.Select the DFS Namespaces and DFS Replication File Services to install and click next.DFS Namespaces and DFS Replication File
12、 Services are now installed.Creating a New DFS Namespace:Now, lets start to steadily build and configure a DFS Structure by first creating a new DFS namespace (a DFS Root) on the member server where the DFS role has just been installed (a member server called DFS1 in this scenario). First, launch DF
13、S Management via the Server Manager dashboard.Create a new DFS namespace (create a root).Confirm the name of the member server unit that will host the DFS root namespace being created.Next, give the DFS namespace a root name. Then click the Edit Settings button.Clicking the Edit Settings button allo
14、ws you to confirmchange where this DFS Root will be placed on this member server, and set permissions for the shared folder.Choose a Domain-based DFS namespace or a Workgroup-based DFS namespace.The next screen shows a summary of configuration for the new DFS namespace being created.After completing
15、 the installtion, the new namespace will appear in DFS Management as shown below.You can also now browse to the new DFS root folder as shown below.Creating Links:With a bare base DFS structure in place, now head back to DFS Management to add in some pre-created shared folders to it. This will provide a single point of reference to these shares (called Links) for users on the LAN. In the DFS console, right click on the DFS namespace root and select New Folder from the drop down menu
