Hello,
I had 6 domain controllers with OS:
- 3 DC with Windows Server 2008r2(one of them had got RODC function)
- 2 DC with Windows Server 2012r2(one of them is Primary DC-AD01, AD02 - secondary)
- 1 DC with Windows Server 2016(that's one was to demote and deleted)
This forest of DC doesn't work correctly. Doesn't had a working replication between them.
DFSR isn't running on this forest.
What's what I did:
Demote all DCs with WS2008r2 and WS2016 OS - on all of these DCs I needed use dcpromo with forceremoval parametr
Now I have working 2 DC with WS2012r2 OS.
Metadata was cleaned after demoting this DC.
BUT! When I try to clean one of entry on DNS in Forward Lookup Zones/_msdcs.contoso.com/dc/_sites/_tcp I can't do this because this entry back. This entry is "_ldap" of one DC with WS2008r2 OS. Other entries are cleaned correctly.
The last DC that I demoted was the DC with RODC. Primary DC cleaned all correctly, but secondary DC(AD02) didn't delete object from AD Users and Computers. DNS was replicated correctly, ADUaC was not.
Repadmin /showrepl from AD01(Primary)
Repadmin: running command /showrepl against full DC localhost
DC\AD01
DSA Options: IS_GC
Site Options: (none)
DSA object GUID: 1cb08d25-826b-43ac-add3-77e9e563708b
DSA invocationID: e43f833e-bfe4-4dd5-94ee-5dfee77d7848
==== INBOUND NEIGHBORS ======================================
DC=contoso,DC=local
DC\AD02 via RPC
DSA object GUID: 41a32af1-9e55-4614-a958-0aca9f6a6434
Last attempt @ 2023-08-28 19:02:18 was successful.
CN=Configuration,DC=contoso,DC=local
DC\AD02 via RPC
DSA object GUID: 41a32af1-9e55-4614-a958-0aca9f6a6434
Last attempt @ 2023-08-28 18:49:24 was successful.
CN=Schema,CN=Configuration,DC=contoso,DC=local
DC\AD02 via RPC
DSA object GUID: 41a32af1-9e55-4614-a958-0aca9f6a6434
Last attempt @ 2023-08-28 18:49:24 was successful.
DC=ForestDnsZones,DC=contoso,DC=local
DC\AD02 via RPC
DSA object GUID: 41a32af1-9e55-4614-a958-0aca9f6a6434
Last attempt @ 2023-08-28 18:49:24 was successful.
DC=DomainDnsZones,DC=contoso,DC=local
DC\AD02 via RPC
DSA object GUID: 41a32af1-9e55-4614-a958-0aca9f6a6434
Last attempt @ 2023-08-28 18:58:38 was successful.
Repadmin /showrepl from AD02:
Repadmin: running command /showrepl against full DC localhost
DC\AD02
DSA Options: IS_GC
Site Options: (none)
DSA object GUID: 41a32af1-9e55-4614-a958-0aca9f6a6434
DSA invocationID: fe4030bf-bec9-40bc-b649-07ac05e09a5b
==== INBOUND NEIGHBORS ======================================
DC=contoso,DC=local
DC\AD01 via RPC
DSA object GUID: 1cb08d25-826b-43ac-add3-77e9e563708b
Last attempt @ 2023-08-28 19:04:33 failed, result 8606 (0x219e):
Insufficient attributes were given to create an object. This object may not exist because it may have been deleted and already garbage collected.
11384 consecutive failure(s).
Last success @ 2023-08-25 19:09:55.
CN=Configuration,DC=contoso,DC=local
DC\AD01 via RPC
DSA object GUID: 1cb08d25-826b-43ac-add3-77e9e563708b
Last attempt @ 2023-08-28 18:51:10 failed, result 8606 (0x219e):
Insufficient attributes were given to create an object. This object may not exist because it may have been deleted and already garbage collected.
261 consecutive failure(s).
Last success @ 2023-08-25 19:00:00.
CN=Schema,CN=Configuration,DC=contoso,DC=local
DC\AD01 via RPC
DSA object GUID: 1cb08d25-826b-43ac-add3-77e9e563708b
Last attempt @ 2023-08-28 18:51:10 was successful.
DC=ForestDnsZones,DC=contoso,DC=local
DC\AD01 via RPC
DSA object GUID: 1cb08d25-826b-43ac-add3-77e9e563708b
Last attempt @ 2023-08-28 18:51:10 was successful.
DC=DomainDnsZones,DC=contoso,DC=local
DC\AD01 via RPC
DSA object GUID: 1cb08d25-826b-43ac-add3-77e9e563708b
Last attempt @ 2023-08-28 18:58:23 was successful.
Source: DC\AD01
******* 11355 CONSECUTIVE FAILURES since 2023-08-25 19:09:55
Last error: 8606 (0x219e):
Insufficient attributes were given to create an object. This object may not exist because it may have been deleted and already garbage collected.
I tried to repair replication between DCs but I've got this:
PS C:\Windows\system32> repadmin /syncall AD02 /Aed
Syncing all NC's held on AD02.
Syncing partition: DC=DomainDnsZones,DC=contoso,DC=local
CALLBACK MESSAGE: The following replication is in progress:
From: CN=NTDS Settings,CN=AD01,CN=Servers,CN=DC,CN=Sites,CN=Configuration,DC=contoso,DC=local
To : CN=NTDS Settings,CN=AD02,CN=Servers,CN=DC,CN=Sites,CN=Configuration,DC=contoso,DC=local
CALLBACK MESSAGE: The following replication completed successfully:
From: CN=NTDS Settings,CN=AD01,CN=Servers,CN=DC,CN=Sites,CN=Configuration,DC=contoso,DC=local
To : CN=NTDS Settings,CN=AD02,CN=Servers,CN=DC,CN=Sites,CN=Configuration,DC=contoso,DC=local
CALLBACK MESSAGE: SyncAll Finished.
SyncAll terminated with no errors.
Syncing partition: DC=ForestDnsZones,DC=contoso,DC=local
CALLBACK MESSAGE: The following replication is in progress:
From: CN=NTDS Settings,CN=AD01,CN=Servers,CN=DC,CN=Sites,CN=Configuration,DC=contoso,DC=local
To : CN=NTDS Settings,CN=AD02,CN=Servers,CN=DC,CN=Sites,CN=Configuration,DC=contoso,DC=local
CALLBACK MESSAGE: The following replication completed successfully:
From: CN=NTDS Settings,CN=AD01,CN=Servers,CN=DC,CN=Sites,CN=Configuration,DC=contoso,DC=local
To : CN=NTDS Settings,CN=AD02,CN=Servers,CN=DC,CN=Sites,CN=Configuration,DC=contoso,DC=local
CALLBACK MESSAGE: SyncAll Finished.
SyncAll terminated with no errors.
Syncing partition: CN=Schema,CN=Configuration,DC=contoso,DC=local
CALLBACK MESSAGE: The following replication is in progress:
From: CN=NTDS Settings,CN=AD01,CN=Servers,CN=DC,CN=Sites,CN=Configuration,DC=contoso,DC=local
To : CN=NTDS Settings,CN=AD02,CN=Servers,CN=DC,CN=Sites,CN=Configuration,DC=contoso,DC=local
CALLBACK MESSAGE: The following replication completed successfully:
From: CN=NTDS Settings,CN=AD01,CN=Servers,CN=DC,CN=Sites,CN=Configuration,DC=contoso,DC=local
To : CN=NTDS Settings,CN=AD02,CN=Servers,CN=DC,CN=Sites,CN=Configuration,DC=contoso,DC=local
CALLBACK MESSAGE: SyncAll Finished.
SyncAll terminated with no errors.
Syncing partition: CN=Configuration,DC=contoso,DC=local
CALLBACK MESSAGE: The following replication is in progress:
From: CN=NTDS Settings,CN=AD01,CN=Servers,CN=DC,CN=Sites,CN=Configuration,DC=contoso,DC=local
To : CN=NTDS Settings,CN=AD02,CN=Servers,CN=DC,CN=Sites,CN=Configuration,DC=contoso,DC=local
CALLBACK MESSAGE: Error issuing replication: 8606 (0x219e):
Insufficient attributes were given to create an object. This object may not exist because it may have been deleted and already garbage collected.
From: CN=NTDS Settings,CN=AD01,CN=Servers,CN=DC,CN=Sites,CN=Configuration,DC=contoso,DC=local
To : CN=NTDS Settings,CN=AD02,CN=Servers,CN=DC,CN=Sites,CN=Configuration,DC=contoso,DC=local
CALLBACK MESSAGE: SyncAll Finished.
SyncAll reported the following errors:
Error issuing replication: 8606 (0x219e):
Insufficient attributes were given to create an object. This object may not exist because it may have been deleted and already garbage collected.
From: CN=NTDS Settings,CN=AD01,CN=Servers,CN=DC,CN=Sites,CN=Configuration,DC=contoso,DC=local
To : CN=NTDS Settings,CN=AD02,CN=Servers,CN=DC,CN=Sites,CN=Configuration,DC=contoso,DC=local
Syncing partition: DC=contoso,DC=local
CALLBACK MESSAGE: The following replication is in progress:
From: CN=NTDS Settings,CN=AD01,CN=Servers,CN=DC,CN=Sites,CN=Configuration,DC=contoso,DC=local
To : CN=NTDS Settings,CN=AD02,CN=Servers,CN=DC,CN=Sites,CN=Configuration,DC=contoso,DC=local
CALLBACK MESSAGE: Error issuing replication: 8606 (0x219e):
Insufficient attributes were given to create an object. This object may not exist because it may have been deleted and already garbage collected.
From: CN=NTDS Settings,CN=AD01,CN=Servers,CN=DC,CN=Sites,CN=Configuration,DC=contoso,DC=local
To : CN=NTDS Settings,CN=AD02,CN=Servers,CN=DC,CN=Sites,CN=Configuration,DC=contoso,DC=local
CALLBACK MESSAGE: SyncAll Finished.
SyncAll reported the following errors:
Error issuing replication: 8606 (0x219e):
Insufficient attributes were given to create an object. This object may not exist because it may have been deleted and already garbage collected.
From: CN=NTDS Settings,CN=AD01,CN=Servers,CN=DC,CN=Sites,CN=Configuration,DC=contoso,DC=local
To : CN=NTDS Settings,CN=AD02,CN=Servers,CN=DC,CN=Sites,CN=Configuration,DC=contoso,DC=local
Any suggestion to fix it? I need to do this before I change FSR to DFSR and move DCs to Windows Server 2022 OS.