Windows 2000 Server and Windows Server 2003 use the File Replication Service (FRS) to replicate SYSVOL, while Windows Server 2008 uses the newer DFS Replication service in domains that use the Windows Server 2008 domain functional level, and FRS for domains that run older domain functional levels. I've seen a few options, but I aren't sure what's going to be the best fix. How to perform a non-authoritative synchronization of DFSR-replicated SYSVOL (like "D2" for FRS), In the ADSIEDIT.MSC tool modify the following distinguished name (DN) value and attribute on each of the domain controllers that you want to make non-authoritative:CN=SYSVOL Subscription,CN=Domain System Volume,CN=DFSR-LocalSettings,CN=,OU=Domain Controllers,DC=msDFSR-Enabled=FALSE. But dfsrmig can also give you an overview of your architecture's overall state before you actually start migrating. As an administrator you may make a group policy change on the domain controller running the PDC emulator and you want this change to be replicated out to a branch location immediately. Replication is used to synchronize the contents of the SYSVOL directory between DCs, and replication is not provided by AD, but by using NtFRS (File Replication Service) or DFS-R service. The SYSVOL folder stores the server’s copy of the domain public files. Right-click the domain and choose Raise Domain Functional Level. State 0 b. 2. This behavior is indicative of a replication issue but to be certain, it's necessary to check the file replication logs on all replicating servers. To verify your DCs are using FRS and not DFSR, you can use this command: In the ADSIEDIT.MSC tool, modify the following DN and two attributes on the domain controller you want to make authoritative (preferably the PDC Emulator, which is usually the most up to date for sysvol replication contents): Modify the following DN and single attribute on all other domain controllers in that domain: Force Active Directory replication throughout the domain and validate its success on all DCs. Start the DFSR service on the other non-authoritative DCs. It also assumes you have the ability to restore data that was deleted, overwritten, damaged, and so on. In Windows Server 2003 (and earlier), to replicate SYSVOL folder in the domain the FRS technology was used, but in Windows Server 2008 R2, this replication technology was deprecated and Microsoft recommends to use DFS replication, because FRS is not a reliable file replication technology.. This means that any server that is part of the replication set can make changes. This is unnecessary in most cases, and it may cause data loss if done incorrectly. State 3 – Eliminated. The use of the authoritative flag is only necessary if you need to force synchronization of all DCs. That domain controller has now done a D2 of sysvol replication. How to perform an authoritative synchronization of DFSR-replicated SYSVOL (like "D4" for FRS), In the ADSIEDIT.MSC tool, modify the following DN and two attributes on the domain controller you want to make authoritative (preferrably the PDC Emulator, which is usually the most up to date for SYSVOL contents):CN=SYSVOL Subscription,CN=Domain System Volume,CN=DFSR-LocalSettings,CN=,OU=Domain Controllers,DC=msDFSR-Enabled=FALSEmsDFSR-options=1, Modify the following DN and single attribute on all other domain controllers in that domain:CN=SYSVOL Subscription,CN=Domain System Volume,CN=DFSR-LocalSettings,CN=,OU=Domain Controllers,DC=msDFSR-Enabled=FALSE. In the File Replication Service (FRS), this was controlled through the D2 and D4 data values for the Burflags registry values, but these values do not exist for the Distributed File System Replication (DFSR) service. Forcing Sysvol replication through NTFRSUTL. In this state, DFS Replication will continue its replication and servicing SYSVOL requests. DrDave242 Principal Support Engineer. After deep investigation, we found that is problem with DFS replication of SYSVOL folder. You can run the repadmin /syncall command on all DCs OR you can do that through the AD sites and services manually for all DCs. This can especially helps you troubleshooting replication issues. If making any DC authoritative, the PDC Emulator as authoritative is preferable, since its sysvol replication contents are most up to date. Step 13 You will see Event ID 4602 in the DFSR event log indicating SYSVOL has been initialized. Active Directory replication is different from SYSVOL replication using FRS or DFSR, although both use the replication topology and schedule from AD. The process, detailed in KB article 2218556 "How to force an authoritative and non-authoritative synchronization for DFSR-replicated SYSVOL (like "D4/D2" for FRS)," reinitializes DFS Replication if SYSVOL is not shared on domain controllers. Run the following command from an elevated command prompt on the same servers that you set as non-authoritative: You will see Event ID 4114 in the DFSR event log indicating sysvol replication is no longer being replicated. As soon as initial sync is finished, event ID 4604 is logged, signaling SYSVOL has completed initialization. Look at the file replication events of all your domain controllers for replication errors.
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