dcdiag - replication Concerns
Nik Alleyne
Just a a quick check for any ideas on why this may be. I am receiving the
following error when I run dcdiag.exe.
Doing primary tests
Testing server: Locale\Server1
Starting test: Replications
REPLICATION-RECEIVED LATENCY WARNING
Server1: Current time is 2009-10-05 09:30:21.
DC=ForestDnsZones,DC=my-domain,DC=lab
Last replication recieved from Server1 at 2009-03-30
12:27:04.
WARNING: This latency is over the Tombstone Lifetime of 60
days!
DC=DomainDnsZones,DC=my-domain,DC=lab
Last replication recieved from Server1 at 2009-03-30
12:27:05.
WARNING: This latency is over the Tombstone Lifetime of 60
days!
CN=Schema,CN=Configuration,DC=my-domain,DC=lab
Last replication recieved from Server1 at 2009-03-30
12:26:36.
WARNING: This latency is over the Tombstone Lifetime of 60
days!
CN=Configuration,DC=my-domain,DC=lab
Last replication recieved from Server1 at 2009-03-30
12:26:32.
WARNING: This latency is over the Tombstone Lifetime of 60
days!
DC=my-domain,DC=lab
Last replication recieved from Server1 at 2009-03-30
12:26:41.
WARNING: This latency is over the Tombstone Lifetime of 60
days!
All other tests are successful - 'passed'. All ideas welcome!
Thanks
Nik
Meinolf Weber [MVP-DS]
If a DC is over the tombstone lifetime, you have either replication problems
in your domain or the machine was disconnected/shutdown longer then the shown
60 days.
So you have to demote the DC, cleanup AD database, AD sites and services
from it and promote it again. Sometimes it can be possible to bring it back
to replication according to:
http://technet.microsoft.com/de-de/library/cc757610(WS.10).aspx
To help you further we need more information about the complete domain setup,
amount of DCs and sites where they are located. Did you have restored a DC
after a crash before form an image or other not supported backup for AD restore?
Best regards
Meinolf Weber
Disclaimer: This posting is provided "AS IS" with no warranties, and confers
no rights.
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Nik
some of those questions I will not be able to answer now. I have started
this job 2 weeks ago and am still learning the environment and configs. So
it is in trying to understand the configuration that I run dcdiag, replmon,
checking event logs, etc and notice this error. But based on what I know
there is no backup currently being done of AD. So I will take a look at the
other domain controllers and make a decision as to what to do later. I
figured I may have to follow similar procedures as you suggested, but i just
wanted other opinions before I go that route.
thanks
Nik
"Meinolf Weber [MVP-DS]" <meiweb@(nospam)gmx.de> wrote in message
news:6cb2911d70138...@msnews.microsoft.com...
Meinolf Weber [MVP-DS]
If no backups exist i would follow asap this way for backup:
http://technet.microsoft.com/en-us/library/cc778772(WS.10).aspx
Nik
I completed the backup and run some more detailed tests. However, most of
these tests are showing successfull. For example repadmin /showrepl * has
almost everything successful.
I created an object on the PDC and check to see if it was replicated to the
others and yes it did. My belief is that there are probably some deleted
objects in active directory and this information is not consistent across
the domain controllers. for example see below for a dcdiag /v /e
esting server: location\PDC Starting test: Replications
* Replications Check
* Replication Latency Check
REPLICATION-RECEIVED LATENCY WARNING
SERVER2: Current time is 2009-10-06 08:37:05.
DC=ForestDnsZones,DC=my-domain,DC=lab
Last replication recieved from SERVER2 at 2009-03-30
12:27:04.
WARNING: This latency is over the Tombstone Lifetime of 60
days!
Latency information for 14 entries in the vector were
ignored.
14 were retired Invocations. 0 were either: read-only
replicas and are not verifiably latent, or dc's no longer replicating this
nc. 0 had no latency information (Win2K DC).
DC=DomainDnsZones,DC=my-domain,DC=lab
Last replication recieved from SERVER2 at 2009-03-30
12:27:05.
WARNING: This latency is over the Tombstone Lifetime of 60
days!
Latency information for 14 entries in the vector were
ignored.
14 were retired Invocations. 0 were either: read-only
replicas and are not verifiably latent, or dc's no longer replicating this
nc. 0 had no latency information (Win2K DC).
CN=Schema,CN=Configuration,DC=my-domain,DC=lab
Last replication recieved from SERVER2 at 2009-03-30
12:26:36.
WARNING: This latency is over the Tombstone Lifetime of 60
days!
Latency information for 18 entries in the vector were
ignored.
18 were retired Invocations. 0 were either: read-only
replicas and are not verifiably latent, or dc's no longer replicating this
nc. 0 had no latency information (Win2K DC).
CN=Configuration,DC=my-domain,DC=lab
Last replication recieved from SERVER2 at 2009-03-30
12:26:32.
WARNING: This latency is over the Tombstone Lifetime of 60
days!
Latency information for 18 entries in the vector were
ignored.
18 were retired Invocations. 0 were either: read-only
replicas and are not verifiably latent, or dc's no longer replicating this
nc. 0 had no latency information (Win2K DC).
DC=my-domain,DC=lab
Last replication recieved from SERVER2 at 2009-03-30
12:26:41.
WARNING: This latency is over the Tombstone Lifetime of 60
days!
Latency information for 18 entries in the vector were
ignored.
18 were retired Invocations. 0 were either: read-only
replicas and are not verifiably latent, or dc's no longer replicating this
nc. 0 had no latency information (Win2K DC).
......................... PDC passed test Replications
Any suggestions.
Nik
"Meinolf Weber [MVP-DS]" <meiweb@(nospam)gmx.de> wrote in message
news:6cb2911d70818...@msnews.microsoft.com...
Meinolf Weber [MVP-DS]
As said before 2 ways to fix the tombstone lifetime problem, the article
from above about getting replication back to work or remove the DC.
And again, please give some more infos about the complete amount of DCs and
how they are located, for more advise.
Nik
ok I will look at it and get back to you.
Thanks for the assistance so far.
Nik
"Meinolf Weber [MVP-DS]" <meiweb@(nospam)gmx.de> wrote in message
news:6cb2911d71018...@msnews.microsoft.com...