Greyed out _msdcs container under my dns domain

I had one Windows 2003 DC running DNS and DHCP  (London-DC1) , recently I added two new Windows 2008 Domain Controllers with DNS (London-DC2 and London-DC3). Currently my DNS zone looks like following

--Forward lookup Zone
  _msdcs.treaty.local

            ---- London-DC1  (ns server)
            ---- London-DC2  (ns server)
            ---- London-DC3  (ns server)

-- treaty.local

      -- msdcs  (this container is greyed out)

                  ---- London-DC1  (ns server)

Question is why the greyed out _msdcs container has only one ns server record. Should there be 3 ns records or just 1 ns records? And why?
adding7Asked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

footechCommented:
The grayed-out _msdcs is a delegation.  These don't update automatically.  You likely wouldn't see any issue if you just have a single domain with the delegation as is.  It's best though to have the delegation point to any name servers that have the _msdcs zone (which is usually replicated to all DNS servers in the forest).
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
adding7Author Commented:
thanks for the update, just one quick question regarding this.....   I understand I can create this manually.

Shouldn't  this delegation records gets created during dcpromo - when I installed 2 new dc's?

Also authorative DNS server is London-DC2
0
footechCommented:
No, the delegation gets created when you first set up a domain, but other than that it is a manual process to update it.
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Windows Server 2008

From novice to tech pro — start learning today.