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By k4k ·
1)How do i configure a Additional Domain Controller to share the load with main DC ?

2) While demoting a DC, will it transfer all the operation Masters role to another DC in a domain ? or is it carried out manually ?

3) What would be the effect if the main root domain holding Schema masters & Domain Naming master role crashes ? how do u bring it up ?
4) i have one Additional Domain controller for my root DC, if the root dc fails can i take it offline & bring up the Additional Domain Controller by giving the IP address of root domain that i took offline.

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by timwalsh In reply to ADS Questions

1) Not quite sure exactly what you mean by "share the load." Since you are asking about configuration instead of creation, I'm assuming you understand how to create an additional DC. There is no "load balancing" capability specific to the DC functions. Usually the role of additional DCs in the same site is to act as backups in the event the "master" DC fails.

2) Demoting a DC will not automatically transfer FSMO roles. In fact the demotion will not take place until the roles have been transferred. You have two ways to transfer roles: using the AD Users and Computers mmc, right-click on the AD domain; choose "Operations Master;" click the Change button on each tab to pick the DC to move the designated FSMO role to.
Or,
After booting to Directory Services Restore mode, you can use the ntdsutil utility to either move the individual roles to another DC, or seize them if the DC that originally held the roles has failed. (Sorry, there isn't enough room here to describe the exact procedure.)

3)/4) Obviously, any time the root DC fails, bad things are going to happen. If the root DC cannot be resurrected at all (i.e. by using a system state restore), if an additional DC exists at the root level, it should be able to seize the root server FSMO roles using the ntdsutil utility. You should not need to change the IP address of the DC. The appropriate changes related to AD will be made in the DNS talbe. You will need to update the DNS table if the DC is also the DNS (name) server. WARNING: Once the Schema and Domain Naming master roles have been seized by another DC, the original should NEVER be brought back online.

Hope this answers your questions.

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by k4k In reply to ADS Questions

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by cul8rm8e In reply to ADS Questions

I think maybe your looking to implement (cluster services) with regards to Q1,This will assure that any applications will be available if for any reason 1 DC goes offline ie: (crash)

hope this helps!

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by k4k In reply to ADS Questions

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by k4k In reply to ADS Questions

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