Last week a customer asked me to check his Lync Server 2013. Everything was working, but there were some Event 1034, LS File Transfer Agent Service errors in the Event Viewer:
Event 1034, LS File Transfer Agent Service
Microsoft Lync Server 2013, File Transfer 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.
Access denied. (\\**********\xds-replica\from-master\data.zip)
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 This can occur if the computer hosting the file share has outdated cached credentials for the computer that is trying to access the file share.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.
Log Name: Lync Server
Source: LS File Transfer Agent Service
Logged: 29/01/2014 12:03:00
EventID: 1034
Task Category: (1121)
Level: Error
Keywords: Classic
Computer: **********
Another error related to the same issue was:
Event 1034, LS File Transfer Agent Service
Microsoft Lync Server 2013, File Transfer 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.
Can’t watch **********.
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 This can occur if the computer hosting the file share has outdated cached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.
Log Name: Lync Server
Source: LS File Transfer Agent Service
Logged: 29/01/2014 11:35:19
Event ID: 1034
Task Category: (1121)
Level: Error
Keywords: Classic
Computer: sahy.**********
The customer said that sahy was the old Lync Server 2010 Front End, and the server was still running but without any Lync Server feature installed.
Executing the PowerShell Get-CsManagementStoreReplicationStatus -CentralManagementStoreStatus, we got the following:
The DeletedReplicas were the Front End and Edge server of Lync Server 2010.
If the servers didn’t exist in Lync Topology, why would they need to be included in replication?
After some research, in a similar case it was said to check Lync Server Back End:
USE [xds]
GO
SELECT [ReplicaId]
,[Fqdn]
,[Supports]
,[LastUpdateCreation]
,[LastStatusReport]
,[DeletedOn]
,[ProductVersion]
,[UpdateThrottleDuration]
FROM [dbo].[Replica]
GO
In this case, ReplicaId 1 and 4 were the ones we needed to delete, so we ran:
delete [dbo].[Replica] where [ReplicaId] in (1,4)
Important Note: be really careful when dealing with Lync Server Back End – it can mess up our entire Lync Deployment.
After deleting, we ran again the SELECT statement to verify that those entries were removed:
That’s it, no more error Event 1034, LS File Transfer Agent Service. Also, those entries were removed from DeletedReplicas in the CMS status:
UC Lobby 
Hi,
I am trying to do your procedure but is showing:
The DELETE statement conflicted with the REFERENCE constraint “FK_ReplicaStatus”. The conflict occurred in database “xds”, table “dbo.ReplicaStatus”, column ‘ReplicaId’
thank you.
Hans A.
Hi,
Did you removed that server from the topology?
David
Your database also contains a table (ReplicaStatus) where a foreign key (FK) uses the primary key (PK) in database Replica.
You have to remove those legacy entries from the ReplicaStatus table as well.
For the example in this post, you should use the following command to delete the ReplicaStatus posts:
delete [xds].[dbo].[ReplicaStatus] where ReplicaId in (1,4)
You can also use this command to do it all in one step (if you dare):
use xds
go
delete ReplicaStatus from ReplicaStatus as t1 join Replica as t2 on t1.ReplicaId = t2.ReplicaId where t2.DeletedOn is not null
go
delete Replica where DeletedOn is not null
go
Please be carefull, as this could potentialy mess up your deployment, do not forget to backup the xds database before doing this.
/Kenneth ML