In the last month, I was very busy, involved in Exchange and Lync Projects. I will describe a fact that occured after move the Lync file Store.
My boss asked me redesign the environment where we work, change servers and others things. I needed change the Lync File Share and increase the number of the FrontEnds.
Thinking in HA, I put the File Store in DFS. You need give the correct permissions.
Then, after the publish the new file store, is important you copy the old content, available here.
Do not forget run the step 2, is very important to do because the Lync needs to do the changes and it must be done in each FrontEnd you have.
But, I did all the steps, and then I will check, I identified the old path of File Store, and also, the replication was broke. Really, I do not know why that. So, I talked with my friend, David Paulino, and then, he manually exported the configuration(Export-CsConfiguration –FileName name.zip ), and checked if there are any evidence of the old content. As not evidence was found, he imported the file with (Import-CsConfiguration -FileName name.zip -LocalStore) and then checked the path was corrected in IIS. After review all the permissions (you can see here) and the replication was back to normal.
So, I believe this steps and experience are important.