We are planning to migrate from the confluence server to the data center version. when checking the data in the existing confluence installation i found a folder named "shared-home" in the confluence home directory. it has 3 sub folders namely dci-flatten, dci-thumbnail, dci-document.  from the configuration file i can see that nothing is pointed to this directory. 

may i know how the data is getting populated in this folder. also do we have to move the same folder to the shared file system during the data center version installation and point is somewhere??

thanks,
Sandeep