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Glossary of DFS Terms

January 26th, 2006 by Jabez Gan [MVP]

Jill from MSFT explained about the DFS terms in Microsoft newsgroup.

Essentially, the “root replica” is what makes a namespace redundant. Don’t
think of a root replica in terms of user data or replication–a root replica
is just the DFS infrastructure that runs on each server that hosts a given
domain-based namespace. Adding multiple root replicas (now known as root
servers or root targets) ensures that if one of those servers goes down,
users can still access the namespace.

Your links and link targets are pointers to the user or application data
that you want available in the namespace. Having a single link target for a
link means that if that link target server is unavailable, the user can’t
access the data. Having multiple link targets (whose content is kept in sync
using FRS or some other means) means that even if one link target fails,
users are transparently redirected to another link target.

A namespace (aka DFS root) can have multiple links, and each link can have
multiple targets. So for your scenario, you would need to create one
namespace (possibly with multiple root replicas if you want redundancy and
can use a domain-based namespace), and then create a link for each
directory. That link points to the UNC path of where the data will be
stored.

 Don’t get confused by these terms!

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This entry was posted on Thursday, January 26th, 2006 at 11:27 pm and is filed under Windows Server System. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.


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