How To Know The Primary Member of A SYSVOL Replica Set?

by [Published on 6 Nov. 2008 / Last Updated on 24 Aug. 2008]

This article explains how to determine the Primary Member of a SYSVOL Replica Set in an Active Directory domain.

The Primary Member is used by all the domain controllers to sync the SYSVOL Replica Set. The first DC in a domain is always the FRS Primary Member. This is useful when you want to perform a D4 operation on SYSVOL Replica Set.


  • Log on to a DC.
  • Use ADSIEdit.msc snap-in
  • Navigate to the following location:

Domain NC > CN=System > CN=File Replication Service > CN=Domain System Volume(SYSVOL share) Properties

  • Go to Attribute Editor and check the attribute by name: fRSPrimaryMember

The above attribute will have the DC name on which the FRS was initially started and created the SYSVOL folder. If you ever encounter any problem and want to initate a D4/D2 operation on SYSVOL Replica Set then always use this DC as the Primary DC for D4 and other Domain Controllers as the D2. When you restart FRS, the D2 DCs will sync from the D4 DC.

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The Author — Nirmal Sharma

Nirmal Sharma avatar

Nirmal Sharma is a MCSEx3, MCITP and was awarded the Microsoft MVP award in Directory Services and Windows Networking. He specializes in Microsoft Azure, Office 365, Directory Services, Failover Clusters, Hyper-V, PowerShell Scripting and System Center products. Nirmal has been involved with Microsoft Technologies since 1994. In his spare time, he likes to help others and share some of his knowledge by writing tips and articles on various sites and contributing to PowerShell-based Dynamic Packs for www.ITDynamicPacks.Net solutions.

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