Windows Server

Paul · Guest

Hello,

Just wondering about the if there any advantages and/or disadvatanges in
creating a DFS root on a Domain Controller. Any suggestions or help would be
greatly appricated.

Thanks

Jill Zoeller [MSFT] · Guest

See the section "Hosting roots on domain controllers" in the Deployment Kit
at
http://www.microsoft.com/technet/prodtechnol/windowsserver2003/library/DepKit/89cf825f-084a-4f24-9114-c7d1be6d7fba.mspx.

And fyi, you might also want to review how DCs are used in DFS. They play an
important yet often-overlooked role in domain-based namespaces. This is
described at
http://www.microsoft.com/technet/prodtechnol/windowsserver2003/library/TechRef/a9096e88-1634-4da6-b820-537341d34906.mspx.

--
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"Paul" <Paul@discussions.microsoft.com> wrote in message
news:2853BDE2-2807-4414-8CE8-DD9553BEF3CA@microsoft.com...

Paul Williams [MVP] · Guest

There's a number of advantages and disadvantages. You should read the DFS
technical documentation and the FAQ for a lot more detail --
http://www.microsoft.com/dfs

However, here's some very brief advantages:

I'm assuming that we're talking about creating a domain-based root, and not
a stand-alone root on a DC here:

-- Redundancy - you can create multiple root replicas
-- Redundancy - configuration data is stored in the domain NC and is thus
available from any DC in the domain
-- Ability to replicate data using DFS

--
Paul Williams
Microsoft MVP - Windows Server - Directory Services
http://www.msresource.net | http://forums.msresource.net

Fab · Guest

And, one of the disadvantages is that if at any in the future you want
to re-initialized frs database, ntfrs.jdb, you will loose all your
domain replication information. If you choose to host your Dfs root on
the DC, you should know that the same service is used for both domain
replication and Dfs share data replication; hence, there will be just
one ntfrs.jdb on the DC. However, there may be many reasons that you
may want to re-initialize the database just for your Dfs. But, if you
host your Dfs on the DC, you won't be able to re-initialize the jdb
file because if you do, you will also loose your domain data
replication as well.

I'd suggest to re-evaluate your selection of Dfs host.

F.

Paul Williams [MVP] · Guest

You raise a very good point. Which is forcing me to ask this question -
hopefully Jill or Richard, or indeed yourself, can answer this...

Can you setup multiple databases? You can certainly change the path, and I
assume a new database is created if you change the path and don't copy the
old one? Or even, if the lack of database at the configured location
doesn't cause FRS to recreate another, perhaps you can copy the same DB to
both locations are reset it?

--
Paul Williams
Microsoft MVP - Windows Server - Directory Services
http://www.msresource.net | http://forums.msresource.net

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