Want to win a PS4? Go Premium and enter to win our High-Tech Treats giveaway. Enter to Win

x
?
Solved

active directory

Posted on 2016-11-12
1
Medium Priority
?
79 Views
Last Modified: 2016-11-13
I need to know following
1) steps for authoritative and non authoritative restore of domain controller
2) in what situation one performs D2 and D4 restore, does it anything to do with USN
0
Comment
Question by:pramod1
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
1 Comment
 
LVL 8

Accepted Solution

by:
Senior IT System Engineer earned 2000 total points
ID: 41885281
Hi Pramod,

The D2 is generally called Non-Authoritative.
D2 is a registry key entry which is used as a FRS non-authoritative restore which is used to bring the local FRS replica set back up to date with its partners. The is completed by comparing all the local files in the replica with the ones of its upstream neighbour. The D2 element refers to the BURFLAG (Backup and Restore Flag) registry key. When this registry key is populated with a D2 entry this directs the local replica to re-initialize with its upstream partner.

The D4 is called Authoritative
D4 is a registry key as above which is used by FRS to signify an Authoritative restore. This makes the current replica set of existing files authoritative for all the members of this replica set. The FRS replication service MUST be stopped on all replication partners of a replica set before carrying out this procedure otherwise you will initiate a morphed condition. (More about morphing tomorrow). IMPORTANT you must only perform the two procedures above by first consulting your support provider, as it is often a last resort solution. Also thoroughly read the following KB article http://support.Microsoft.com/kb/315457/.

When should you use them?

Don't just go ahead with D4/D2. D4/D2 shall be the last resort except the followings:

FRS computer is throwing JOURNAL WRAP Errors in the FRS Event Log
Junction Points have been changed or deleted
File/folders are morphed
For troubleshooting FRS and when you to use D4/D2, please check the following Knowledge Base at Microsoft site:

http://technet.microsoft.com/en-us/library/Bb727056.aspx
0

Featured Post

What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Active Directory can easily get cluttered with unused service, user and computer accounts. In this article, I will show you the way I like to implement ADCleanup..
It’s time for spooky stories and consuming way too much sugar, including the many treats we’ve whipped for you in the world of tech. Check it out!
This Micro Tutorial hows how you can integrate  Mac OSX to a Windows Active Directory Domain. Apple has made it easy to allow users to bind their macs to a windows domain with relative ease. The following video show how to bind OSX Mavericks to …
This video shows how to use Hyena, from SystemTools Software, to update 100 user accounts from an external text file. View in 1080p for best video quality.
Suggested Courses

610 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question