Find the Lync Front End Server that generates the address book files

For Lync 2010 Infrastructure:

Method 1:

Open command and browse to the location of dbanalyze present in Lync Front End Server

dbanalyze.exe /report:diag > c:\>ocsDiagReport.txt 


Method 2:

Check the task manager on each Front End in the pool and look for ABSServer.exe process should be present on the Lync Front End Server

Method 3:

Check the event viewer on each Front End in the pool and look for the events generated by the LS Address Book Server.

For Lync 2013 Infrastructure:

Debug-CsAddressBookReplication