---
title: "AD új PDC, PDC AD-ból kiesése esetén"
description: "Transfer FSMO From a Failed Domain Controller (Running Windows Server 2008 R2) 1.Prepare - DC21 : Domain Controller(Yi.vn - Primary)       # Server down or OS error (Unavailable)   IP 10.0.0.21 - DC22 : Domain Controller(Yi.vn - Secondary)…"
url: "https://kellej.hu/docs/ad-uj-pdc-pdc-ad-bol-kiesese-eseten/"
updated: "2026-04-16"
category: Windows
---

# AD új PDC, PDC AD-ból kiesése esetén

Transfer FSMO From a Failed Domain Controller (Running Windows Server 2008 R2)

1.Prepare

- DC21 : Domain Controller(Yi.vn - Primary)       # Server down or OS error (Unavailable)   IP 10.0.0.21

- DC22 : Domain Controller(Yi.vn - Secondary)     # Server alive (Available)                IP 10.0.0.22         

2. Step by step : Transfer FSMO From DC21 to DC22    ---------------******************  Youtube.com/c/MicrosoftLab  ********************--------------------

- DC22 : Transfer FSMO From DC21

  + Start - Administrative Tools - Active Directory Users and Computers - Yi.vn - Domain Controllers OU - Check number of domain controllers

    + Right-Click Yi.vn - Operations Masters... - RID tab(PDC,Infrastructure) - Change... - Yes  === Fail because DC21 error 

  + Set the first DNS is DC22(10.0.0.22)

  + Start - Windows PowerShell - Right-Click 'Windows PowerShell' - Run as administrator, type :

    + dsquery server -forest                             # Check number of domain controllers
     + netdom query fsmo                                  # Check which domain controller is the owner of FSMO roles (all at DC21)
     + regsvr32 schmmgmt.dll                              # Register the Active Directory schema management library

  + Start - Right-Click 'Command Prompt' - Run as administrator, type :

    + Ping DC21.Yi.vn or 10.0.0.21  === Fail

    + ntdsutil                                            # Seize the roles from a failed DC21 using NTDSUTIL tool

    + ntdsutil : roles

    + fsmo maintenance : connections

    + server connections : connect to server DC22

    + server connections : q

    + fsmo maintenance : seize naming master              # seize naming master role

    + fsmo maintenance : seize infrastructure master      # seize infrastructure master role

    + fsmo maintenance : seize rid master                 # seize rid master role

    + fsmo maintenance : seize schema master              # seize schema master role

    + fsmo maintenance : seize pdc                        # seize pdc role

    + fsmo maintenance : q

    + ntdsutil : metadata cleanup

    + metadata cleanup : connections

    + server connections : connect to server DC22

    + server connections : q

    + metadata cleanup : select operation target         # List the existing Active Directory sites

    + select operation target : list sites

    + select operation target : select site 0            # Site Yi.vn

    + select operation target : list servers in site

    + select operation target : Select server 0          # Select DC21

    + select operation target : list domain

    + select operation target : select domain 0          # Select Yi.vn

    + select operation target : q

    + metadata cleanup : remove selected server

  + Start - Administrative Tools - Active Directory Sites and Services - Sites - Default-First-Site-Name - Servers - Right-Click DC21 - Delete - Yes

  + Windows PowerShell, type : netdom query fsmo        # Check which domain controller is the owner of FSMO roles (all at DC22)     === OK