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Lync Server
2010 CMS replication:
With Microsoft
Lync Server 2010, configuration data about servers and services is moved to the
Central Management store. The Central Management store provides a more robust, schematized
storage of the data needed to define, set up, maintain, administer, describe, and
operate a Lync Server 2010 deployment. It also validates the data to ensure configuration
consistency.
All changes
to this configuration data happen at the Central Management store, eliminating “out-of-sync”
problems. Read-only copies of the data are replicated to all servers in the topology,
including Edge Servers and survivable branch appliances.
The Active
Directory Domain Services (AD DS) are still used to store basic Lync Server user
information, such as the user’s SIP URI and phone number. User policy information
is stored in the Central Management store. The use of Active Directory Domain Services
(AD DS) also provides backward compatibility with earlier releases of Lync Server.
To administer
servers and services, you use Lync Server Management Shell or the Lync Server Control
Panel, which then make the settings in the Central Management store. Configuration
changes are replicated to all the servers in your deployment by the Central Management
Server, which runs on one Front End pool or one Standard Edition server in your
deployment
During Lync installation I encountered problem with
the store replication. Running CMS
replication command gave following status information.
PS C:\Users\hcltocs> Get-CsManagementStoreReplicationStatus
UpToDate
: False
ReplicaFqdn :
Lync Server 1
LastStatusReport :
LastUpdateCreation : 12/7/2010 12:09:03 PM
ProductVersion :
UpToDate
: False
ReplicaFqdn :
Lync Server 2
LastStatusReport :
LastUpdateCreation : 12/7/2010 12:09:03 PM
ProductVersion :
UpToDate
: False
ReplicaFqdn :
Lync Server 3
LastStatusReport :
LastUpdateCreation : 12/7/2010 12:09:03 PM
ProductVersion
:
When you get above error, run the following command
to check the active CMS status.
Get-CsManagementStoreReplicationStatus -CentralManagementStoreStatus
LastUpdatedOn
: 11/24/2010 11:07:23 PM
ActiveMasterFqdn
: Lync-Server-1 FQDN
ActiveMasterLastHeartBeat
: 11/24/2010 11:55:22 PM
ActiveFileTransferAgentFqdn
: Lync-Server-1 FQDN
ActiveFileTransferAgentLastHeartBeat : 11/24/2010 11:55:23 PM
ActiveReplicas
: {Lync-Server-1 FQDN, Lync-Server-2 FQDN,
Lync-Server-3 FQDN}
DeletedReplicas
: {}
Running Invoke-csManagementStoreReplication command
(on the CMS Server) gave following error in the event viewer.
Log Name: Lync Server
Source: LS Master
Replicator Agent Service
Date: 12/7/2010
12:09:01 PM
Event ID: 2031
Task Category: (2122)
Level: Error
Keywords: Classic
User: N/A
Computer: Lync_Server
Description:
Microsoft Lync Server 2010, Master Replicator Agent service encountered an error
while accessing a file share and will continuously attempt to access this file share
until this issue is resolved. While this condition persists, replication to replica
machines might not occur.
IO failure occurred for Path=\\Lync_Server\lyncee\1-CentralMgmt-1\CMSFileStore\xds-master\working\replication\tmp.
Exception=Access to the path '\\Lync_Server\lyncee\1-CentralMgmt-1\CMSFileStore\xds-master\working\replication\tmp\5c862106-aa68-4a17-aa63-9292d01d98cd'
is denied..
Cause: Possible issues with file share permissions. This can occur if the computer
hosting the file share has outdated cached credentials for the computer that is
trying to access the file share.
Resolution:
For details about how to resolve
file share permission issues, see the product documentation.
When I accessed the Lync share.. I didn’t find any
folder under =\\Lync Server\lyncee\1-CentralMgmt-1\CMSFileStot
ore
This was strange… but a truth.
J
Re-install the Lync Server components from Lync Server
deployment wizard.
If the share is there with right folder structure,
then ensure you have right permission configured on the Lync share.
How to check permission
on the Lync Share…
Cacls <full path of
your lyncee share>
The share should have access provided to following groups.
rtchsuniversalservices, rtccomponentuniversalservices, rtcuniversalserveradmins,
rtcuniversalconfigreplicator.
If not please assign them the permission and run the command “invoke-csmanagementstorereplication”
wait for some time and see the replication status again.
How to check the CMS
store location:
Get-CsConfigurationStoreLocation
How to check the management
connection:
PS C:\Users\hcltocs> Get-CsManagementConnection
StoreProvider : Sql
Connection : Data Source=CMS_Server;Initial
Catalog=xds
;Integrated Security=True
ReadOnly
: False
Run Enable-CsTopology
and then Enable-CsComputer. Reboot the Lync FE servers.
Wait for 15 minutes and check for the replication status again.
By
Ram K Ojha
(MCSE, MCTS - LCS
2005, MCTS - OCS 2007, MCTS - U.C. Voice
Specialization)
http://www.OCSPedia.com
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