清除元数据后，打开DNS服务，在正向和反向查找区域中删除有关2012R2DC2的记录。如下图
最后打开AD站点和服务，删除默认站点——Servers下的2012R2DC2，如下图
删除后，重启Server2012R2DC1.至此清理宕机服务器的数据已经完成。
附：在客户端查询FSMO角色脚本（将下面代码复制到文本中，将后缀改为vbs，然后在客户端执行即可）
Set objRootDSE = GetObject(\Dim text ' Schema Master
Set objSchema = GetObject(\strSchemaMaster = objSchema.Get(\Set objNtds = GetObject(\Set objComputer = GetObject(objNtds.Parent)
text=\Set objNtds = Nothing Set objComputer = Nothing ' Domain Naming Master
Set objPartitions = GetObject(\objRootDSE.Get(\
strDomainNamingMaster = objPartitions.Get(\Set objNtds = GetObject(\Set objComputer = GetObject(objNtds.Parent)
text=text&\Set objNtds = Nothing Set objComputer = Nothing ' PDC Emulator
Set objDomain = GetObject(\strPdcEmulator = objDomain.Get(\Set objNtds = GetObject(\Set objComputer = GetObject(objNtds.Parent)
text=text&\Set objNtds = Nothing Set objComputer = Nothing ' RID Master
Set objRidManager = GetObject(\objRootDSE.Get(\
strRidMaster = objRidManager.Get(\Set objNtds = GetObject(\Set objComputer = GetObject(objNtds.Parent)
text=text&\Set objNtds = Nothing Set objComputer = Nothing ' Infrastructure Master
Set objInfrastructure = GetObject(\objRootDSE.Get(\
strInfrastructureMaster = objInfrastructure.Get(\Set objNtds = GetObject(\Set objComputer = GetObject(objNtds.Parent)
text=text&\WScript.Echo text
