I think I have already answered this in a previous thread of yours, see Re: Thignworx dataconnector installation
Regarding the repository link, the bottom line is that DataConnect needs to be able to see under /repository the content of ThingworxStorage/repository folder.
So if ThingWorx and DataConnect are on the same machine a simple link will do : ln -s /ThingworxStorage/repository /repository.
If ThingWorx and DataConnect are on different machines you need to mount the ThingworxStorage/repository folder form the ThingWorx machine to /repository directory on the DataConnect machine.
How to do this will depend on the OS used. Your System Admin should know how to perform this step."
I guess you can also Google this as there are lot of information about how to mount folder between Windows and Linux. However this is a system admin question, this is not a DataConnect or ThingWorx feature.