| Author | Messages | |
clintw
Posts:26
 | | 03/04/2008 7:48 PM |
| Hi,
I think I just worked myself out of a replication problem but I am not sure if it's truly corrected. I have 4 DCs. When I look in AD Sites and Services each Domain controller replicates with 2 other DCs. I would have though that each domain controller would replicate to all 3 but I may be mistaken. Here is the example:
DC1 ==> replicates with DC2 and DC3
DC2 ==> replicates with DC1 and DC4
DC3 ==> replicates with DC1 and DC4
DC4 ==> replicates with DC2 and DC3
This doesn't seem right to me. I thought I would see 3 automatically generated replication links for each DC rather than just the 2. Is it right or wrong?
-Clint
| | | |
| EricGustafson
Posts:42
| | 03/04/2008 7:53 PM |
| What does the output of repadmin /showreps > rep.txt provide?
--Eric
From: ActiveDir-owner@mail.activedir.org [mailto:ActiveDir-owner@mail.activedir.org] On Behalf Of Walker, Clint
Sent: Tuesday, March 04, 2008 7:46 PM
To: ActiveDir@mail.activedir.org
Subject: RE: [ActiveDir] replication topology
I am also getting this when I do a DCDIAG....
REPLICATION LATENCY WARNING
ERROR: Expected notification link is missing.
Source DC4
Replication of new changes along this path will be delayed.
This problem should self-correct on the next periodic sync.
________________________________
From: ActiveDir-owner@mail.activedir.org [mailto:ActiveDir-owner@mail.activedir.org] On Behalf Of Walker, Clint
Sent: Tuesday, March 04, 2008 4:44 PM
To: ActiveDir@mail.activedir.org
Subject: [ActiveDir] replication topology
Hi,
I think I just worked myself out of a replication problem but I am not sure if it's truly corrected. I have 4 DCs. When I look in AD Sites and Services each Domain controller replicates with 2 other DCs. I would have though that each domain controller would replicate to all 3 but I may be mistaken. Here is the example:
DC1 ==> replicates with DC2 and DC3
DC2 ==> replicates with DC1 and DC4
DC3 ==> replicates with DC1 and DC4
DC4 ==> replicates with DC2 and DC3
This doesn't seem right to me. I thought I would see 3 automatically generated replication links for each DC rather than just the 2. Is it right or wrong?
-Clint
| | | |
| clintw
Posts:26
| | 03/04/2008 8:03 PM |
| Here is what it says.
Default-First-Site-Name\ DC1
DSA Options : IS_GC
objectGuid : da1fdab6-8b69-4b66-80e0-ca63e1299c9f
invocationID: bf6e83df-39cf-4c9c-89d3-84ea684036d2
==== INBOUND NEIGHBORS ======================================
CN=Schema,CN=Configuration,DC=big,DC=booty,DC=edu
Default-First-Site-Name\DC2 via RPC
objectGuid: 553e32f0-727f-42fc-9366-a333c3726305
Last attempt @ 2008-03-04 16:50.11 was successful.
Default-First-Site-Name\ DC3 via RPC
objectGuid: 84367b8d-e647-45cd-94f6-6b57ceb0f222
Last attempt @ 2008-03-04 16:50.11 was successful.
CN=Configuration,DC=big,DC=booty,DC=edu
Default-First-Site-Name\ DC3 via RPC
objectGuid: 84367b8d-e647-45cd-94f6-6b57ceb0f222
Last attempt @ 2008-03-04 16:50.11 was successful.
Default-First-Site-Name\ DC2 via RPC
objectGuid: 553e32f0-727f-42fc-9366-a333c3726305
Last attempt @ 2008-03-04 16:50.20 was successful.
DC=big,DC=booty,DC=edu
Default-First-Site-Name\DC3 via RPC
objectGuid: 84367b8d-e647-45cd-94f6-6b57ceb0f222
Last attempt @ 2008-03-04 16:50.11 was successful.
Default-First-Site-Name\DC2 via RPC
objectGuid: 553e32f0-727f-42fc-9366-a333c3726305
Last attempt @ 2008-03-04 16:50.11 was successful.
==== OUTBOUND NEIGHBORS FOR CHANGE NOTIFICATIONS ============
CN=Schema,CN=Configuration,DC=big,DC=booty,DC=edu
Default-First-Site-Name\DC2 via RPC
objectGuid: 553e32f0-727f-42fc-9366-a333c3726305
Default-First-Site-Name\CPR-DC3 via RPC
objectGuid: 84367b8d-e647-45cd-94f6-6b57ceb0f222
CN=Configuration,DC=big,DC=booty,DC=edu
Default-First-Site-Name\DC2 via RPC
objectGuid: 553e32f0-727f-42fc-9366-a333c3726305
Default-First-Site-Name\DC3 via RPC
objectGuid: 84367b8d-e647-45cd-94f6-6b57ceb0f222
DC=big,DC=booty,DC=edu
Default-First-Site-Name\DC2 via RPC
objectGuid: 553e32f0-727f-42fc-9366-a333c3726305
Default-First-Site-Name\DC3 via RPC
objectGuid: 84367b8d-e647-45cd-94f6-6b57ceb0f222
________________________________
From: ActiveDir-owner@mail.activedir.org [mailto:ActiveDir-owner@mail.activedir.org] On Behalf Of Gustafson, Eric (Oldcastle Materials)
Sent: Tuesday, March 04, 2008 4:53 PM
To: 'ActiveDir@mail.activedir.org'
Subject: RE: [ActiveDir] replication topology
What does the output of repadmin /showreps > rep.txt provide?
--Eric
From: ActiveDir-owner@mail.activedir.org [mailto:ActiveDir-owner@mail.activedir.org] On Behalf Of Walker, Clint
Sent: Tuesday, March 04, 2008 7:46 PM
To: ActiveDir@mail.activedir.org
Subject: RE: [ActiveDir] replication topology
I am also getting this when I do a DCDIAG....
REPLICATION LATENCY WARNING
ERROR: Expected notification link is missing.
Source DC4
Replication of new changes along this path will be delayed.
This problem should self-correct on the next periodic sync.
________________________________
From: ActiveDir-owner@mail.activedir.org [mailto:ActiveDir-owner@mail.activedir.org] On Behalf Of Walker, Clint
Sent: Tuesday, March 04, 2008 4:44 PM
To: ActiveDir@mail.activedir.org
Subject: [ActiveDir] replication topology
Hi,
I think I just worked myself out of a replication problem but I am not sure if it's truly corrected. I have 4 DCs. When I look in AD Sites and Services each Domain controller replicates with 2 other DCs. I would have though that each domain controller would replicate to all 3 but I may be mistaken. Here is the example:
DC1 ==> replicates with DC2 and DC3
DC2 ==> replicates with DC1 and DC4
DC3 ==> replicates with DC1 and DC4
DC4 ==> replicates with DC2 and DC3
This doesn't seem right to me. I thought I would see 3 automatically generated replication links for each DC rather than just the 2. Is it right or wrong?
-Clint
| | | |
| danholme
Posts:165
| | 03/04/2008 8:03 PM |
| The error you're getting probably will go away.
The topology (assuming they're all in one site) is expected. KCC creates a two-way topology with no more than three hops, so your topology is
DC1 ßà DC2 ß à DC4 ß à DC3 ß à DC1... (can't type in a 'ring')
From: ActiveDir-owner@mail.activedir.org [mailto:ActiveDir-owner@mail.activedir.org] On Behalf Of Walker, Clint
Sent: Tuesday, March 04, 2008 2:46 PM
To: ActiveDir@mail.activedir.org
Subject: RE: [ActiveDir] replication topology
I am also getting this when I do a DCDIAG....
REPLICATION LATENCY WARNING
ERROR: Expected notification link is missing.
Source DC4
Replication of new changes along this path will be delayed.
This problem should self-correct on the next periodic sync.
________________________________
From: ActiveDir-owner@mail.activedir.org [mailto:ActiveDir-owner@mail.activedir.org] On Behalf Of Walker, Clint
Sent: Tuesday, March 04, 2008 4:44 PM
To: ActiveDir@mail.activedir.org
Subject: [ActiveDir] replication topology
Hi,
I think I just worked myself out of a replication problem but I am not sure if it's truly corrected. I have 4 DCs. When I look in AD Sites and Services each Domain controller replicates with 2 other DCs. I would have though that each domain controller would replicate to all 3 but I may be mistaken. Here is the example:
DC1 è replicates with DC2 and DC3
DC2 è replicates with DC1 and DC4
DC3 è replicates with DC1 and DC4
DC4 è replicates with DC2 and DC3
This doesn't seem right to me. I thought I would see 3 automatically generated replication links for each DC rather than just the 2. Is it right or wrong?
-Clint
| | | |
| h2bear@msn.com
Posts:51
| | 03/04/2008 10:29 PM |
| I think it will be fine also. But..
How long have your DC been up? You can also run repadmin /replsummary and it
will show you what has gone on with all your DCs. Are you seeing any
replication error messages in the Directory services log.
Hugh
_____
From: ActiveDir-owner@mail.activedir.org
[mailto:ActiveDir-owner@mail.activedir.org] On Behalf Of Walker, Clint
Sent: Tuesday, March 04, 2008 4:59 PM
To: ActiveDir@mail.activedir.org
Subject: RE: [ActiveDir] replication topology
Here is what it says.
Default-First-Site-Name\ DC1
DSA Options : IS_GC
objectGuid : da1fdab6-8b69-4b66-80e0-ca63e1299c9f
invocationID: bf6e83df-39cf-4c9c-89d3-84ea684036d2
==== INBOUND NEIGHBORS ======================================
CN=Schema,CN=Configuration,DC=big,DC=booty,DC=edu
Default-First-Site-Name\DC2 via RPC
objectGuid: 553e32f0-727f-42fc-9366-a333c3726305
Last attempt @ 2008-03-04 16:50.11 was successful.
Default-First-Site-Name\ DC3 via RPC
objectGuid: 84367b8d-e647-45cd-94f6-6b57ceb0f222
Last attempt @ 2008-03-04 16:50.11 was successful.
CN=Configuration,DC=big,DC=booty,DC=edu
Default-First-Site-Name\ DC3 via RPC
objectGuid: 84367b8d-e647-45cd-94f6-6b57ceb0f222
Last attempt @ 2008-03-04 16:50.11 was successful.
Default-First-Site-Name\ DC2 via RPC
objectGuid: 553e32f0-727f-42fc-9366-a333c3726305
Last attempt @ 2008-03-04 16:50.20 was successful.
DC=big,DC=booty,DC=edu
Default-First-Site-Name\DC3 via RPC
objectGuid: 84367b8d-e647-45cd-94f6-6b57ceb0f222
Last attempt @ 2008-03-04 16:50.11 was successful.
Default-First-Site-Name\DC2 via RPC
objectGuid: 553e32f0-727f-42fc-9366-a333c3726305
Last attempt @ 2008-03-04 16:50.11 was successful.
==== OUTBOUND NEIGHBORS FOR CHANGE NOTIFICATIONS ============
CN=Schema,CN=Configuration,DC=big,DC=booty,DC=edu
Default-First-Site-Name\DC2 via RPC
objectGuid: 553e32f0-727f-42fc-9366-a333c3726305
Default-First-Site-Name\CPR-DC3 via RPC
objectGuid: 84367b8d-e647-45cd-94f6-6b57ceb0f222
CN=Configuration,DC=big,DC=booty,DC=edu
Default-First-Site-Name\DC2 via RPC
objectGuid: 553e32f0-727f-42fc-9366-a333c3726305
Default-First-Site-Name\DC3 via RPC
objectGuid: 84367b8d-e647-45cd-94f6-6b57ceb0f222
DC=big,DC=booty,DC=edu
Default-First-Site-Name\DC2 via RPC
objectGuid: 553e32f0-727f-42fc-9366-a333c3726305
Default-First-Site-Name\DC3 via RPC
objectGuid: 84367b8d-e647-45cd-94f6-6b57ceb0f222
_____
From: ActiveDir-owner@mail.activedir.org
[mailto:ActiveDir-owner@mail.activedir.org] On Behalf Of Gustafson, Eric
(Oldcastle Materials)
Sent: Tuesday, March 04, 2008 4:53 PM
To: 'ActiveDir@mail.activedir.org'
Subject: RE: [ActiveDir] replication topology
What does the output of repadmin /showreps > rep.txt provide?
--Eric
From: ActiveDir-owner@mail.activedir.org
[mailto:ActiveDir-owner@mail.activedir.org] On Behalf Of Walker, Clint
Sent: Tuesday, March 04, 2008 7:46 PM
To: ActiveDir@mail.activedir.org
Subject: RE: [ActiveDir] replication topology
I am also getting this when I do a DCDIAG
.
REPLICATION LATENCY WARNING
ERROR: Expected notification link is missing.
Source DC4
Replication of new changes along this path will be delayed.
This problem should self-correct on the next periodic sync.
_____
From: ActiveDir-owner@mail.activedir.org
[mailto:ActiveDir-owner@mail.activedir.org] On Behalf Of Walker, Clint
Sent: Tuesday, March 04, 2008 4:44 PM
To: ActiveDir@mail.activedir.org
Subject: [ActiveDir] replication topology
Hi,
I think I just worked myself out of a replication problem but I am not sure
if its truly corrected. I have 4 DCs. When I look in AD Sites and
Services each Domain controller replicates with 2 other DCs. I would have
though that each domain controller would replicate to all 3 but I may be
mistaken. Here is the example:
DC1 ==> replicates with DC2 and DC3
DC2 ==> replicates with DC1 and DC4
DC3 ==> replicates with DC1 and DC4
DC4 ==> replicates with DC2 and DC3
This doesnt seem right to me. I thought I would see 3 automatically
generated replication links for each DC rather than just the 2. Is it right
or wrong?
-Clint
| | | |
| clintw
Posts:26
| | 03/05/2008 4:12 PM |
| Today when I logged in I checked sites and services. My 4th DC now has 3 automatically generated replication links while the other 3 DCs have only 2. I ran a replsummary and posted it below. Shouldn't there be equal source and destination DCs? Also, when I run a DCDIAG on all domain controllers everything passes but on DC1 I get this message:
Starting test: Replications
[DC3] DsBind() failed with error 1722,
The RPC server is unavailable..
......................... DC1 passed test Replications
--------------------------------------------------------------------------------------
Replication Summary Start Time: 2008-03-05 13:03:06
Beginning data collection for replication summary, this may take awhile:
.......
Source DC largest delta fails/total %% error
DC1 08m:35s 0 / 6 0
DC2 12m:55s 0 / 6 0
DC3 12m:55s 0 / 3 0
DC4 08m:35s 0 / 3 0
Destination DC largest delta fails/total %% error
DC1 12m:55s 0 / 6 0
DC2 08m:36s 0 / 6 0
DC4 05m:45s 0 / 6 0
Experienced the following operational errors trying to retrieve replication info
rmation:
58 - dc3
________________________________
From: ActiveDir-owner@mail.activedir.org [mailto:ActiveDir-owner@mail.activedir.org] On Behalf Of Hugh
Sent: Tuesday, March 04, 2008 7:29 PM
To: ActiveDir@mail.activedir.org
Subject: RE: [ActiveDir] replication topology
I think it will be fine also. But..
How long have your DC been up? You can also run repadmin /replsummary and it will show you what has gone on with all your DCs. Are you seeing any replication error messages in the Directory services log.
Hugh
________________________________
From: ActiveDir-owner@mail.activedir.org [mailto:ActiveDir-owner@mail.activedir.org] On Behalf Of Walker, Clint
Sent: Tuesday, March 04, 2008 4:59 PM
To: ActiveDir@mail.activedir.org
Subject: RE: [ActiveDir] replication topology
Here is what it says.
Default-First-Site-Name\ DC1
DSA Options : IS_GC
objectGuid : da1fdab6-8b69-4b66-80e0-ca63e1299c9f
invocationID: bf6e83df-39cf-4c9c-89d3-84ea684036d2
==== INBOUND NEIGHBORS ======================================
CN=Schema,CN=Configuration,DC=big,DC=booty,DC=edu
Default-First-Site-Name\DC2 via RPC
objectGuid: 553e32f0-727f-42fc-9366-a333c3726305
Last attempt @ 2008-03-04 16:50.11 was successful.
Default-First-Site-Name\ DC3 via RPC
objectGuid: 84367b8d-e647-45cd-94f6-6b57ceb0f222
Last attempt @ 2008-03-04 16:50.11 was successful.
CN=Configuration,DC=big,DC=booty,DC=edu
Default-First-Site-Name\ DC3 via RPC
objectGuid: 84367b8d-e647-45cd-94f6-6b57ceb0f222
Last attempt @ 2008-03-04 16:50.11 was successful.
Default-First-Site-Name\ DC2 via RPC
objectGuid: 553e32f0-727f-42fc-9366-a333c3726305
Last attempt @ 2008-03-04 16:50.20 was successful.
DC=big,DC=booty,DC=edu
Default-First-Site-Name\DC3 via RPC
objectGuid: 84367b8d-e647-45cd-94f6-6b57ceb0f222
Last attempt @ 2008-03-04 16:50.11 was successful.
Default-First-Site-Name\DC2 via RPC
objectGuid: 553e32f0-727f-42fc-9366-a333c3726305
Last attempt @ 2008-03-04 16:50.11 was successful.
==== OUTBOUND NEIGHBORS FOR CHANGE NOTIFICATIONS ============
CN=Schema,CN=Configuration,DC=big,DC=booty,DC=edu
Default-First-Site-Name\DC2 via RPC
objectGuid: 553e32f0-727f-42fc-9366-a333c3726305
Default-First-Site-Name\CPR-DC3 via RPC
objectGuid: 84367b8d-e647-45cd-94f6-6b57ceb0f222
CN=Configuration,DC=big,DC=booty,DC=edu
Default-First-Site-Name\DC2 via RPC
objectGuid: 553e32f0-727f-42fc-9366-a333c3726305
Default-First-Site-Name\DC3 via RPC
objectGuid: 84367b8d-e647-45cd-94f6-6b57ceb0f222
DC=big,DC=booty,DC=edu
Default-First-Site-Name\DC2 via RPC
objectGuid: 553e32f0-727f-42fc-9366-a333c3726305
Default-First-Site-Name\DC3 via RPC
objectGuid: 84367b8d-e647-45cd-94f6-6b57ceb0f222
________________________________
From: ActiveDir-owner@mail.activedir.org [mailto:ActiveDir-owner@mail.activedir.org] On Behalf Of Gustafson, Eric (Oldcastle Materials)
Sent: Tuesday, March 04, 2008 4:53 PM
To: 'ActiveDir@mail.activedir.org'
Subject: RE: [ActiveDir] replication topology
What does the output of repadmin /showreps > rep.txt provide?
--Eric
From: ActiveDir-owner@mail.activedir.org [mailto:ActiveDir-owner@mail.activedir.org] On Behalf Of Walker, Clint
Sent: Tuesday, March 04, 2008 7:46 PM
To: ActiveDir@mail.activedir.org
Subject: RE: [ActiveDir] replication topology
I am also getting this when I do a DCDIAG....
REPLICATION LATENCY WARNING
ERROR: Expected notification link is missing.
Source DC4
Replication of new changes along this path will be delayed.
This problem should self-correct on the next periodic sync.
________________________________
From: ActiveDir-owner@mail.activedir.org [mailto:ActiveDir-owner@mail.activedir.org] On Behalf Of Walker, Clint
Sent: Tuesday, March 04, 2008 4:44 PM
To: ActiveDir@mail.activedir.org
Subject: [ActiveDir] replication topology
Hi,
I think I just worked myself out of a replication problem but I am not sure if it's truly corrected. I have 4 DCs. When I look in AD Sites and Services each Domain controller replicates with 2 other DCs. I would have though that each domain controller would replicate to all 3 but I may be mistaken. Here is the example:
DC1 ==> replicates with DC2 and DC3
DC2 ==> replicates with DC1 and DC4
DC3 ==> replicates with DC1 and DC4
DC4 ==> replicates with DC2 and DC3
This doesn't seem right to me. I thought I would see 3 automatically generated replication links for each DC rather than just the 2. Is it right or wrong?
-Clint
| | | |
| listmail
Posts:824
| | 03/08/2008 1:37 PM |
| Replication within a site will build a ring of 3 hops or less. You will see
2 DC connections per DC until the ring has to be bisected (or more). You
won't get a mesh like you are thinking unless you manually generate the
connections and I don't really recommend that.
I think this is layed out my book, but I don't recall. 
joe
--
O'Reilly Active Directory Third Edition -
http://www.joeware.net/win/ad3e.htm
_____
From: ActiveDir-owner@mail.activedir.org
[mailto:ActiveDir-owner@mail.activedir.org] On Behalf Of Walker, Clint
Sent: Tuesday, March 04, 2008 7:44 PM
To: ActiveDir@mail.activedir.org
Subject: [ActiveDir] replication topology
Hi,
I think I just worked myself out of a replication problem but I am not sure
if it's truly corrected. I have 4 DCs. When I look in AD Sites and
Services each Domain controller replicates with 2 other DCs. I would have
though that each domain controller would replicate to all 3 but I may be
mistaken. Here is the example:
DC1 ==> replicates with DC2 and DC3
DC2 ==> replicates with DC1 and DC4
DC3 ==> replicates with DC1 and DC4
DC4 ==> replicates with DC2 and DC3
This doesn't seem right to me. I thought I would see 3 automatically
generated replication links for each DC rather than just the 2. Is it right
or wrong?
-Clint
| | | |
|
|