Store files on another NAS

Hey all, I have a WD My Cloud and a server PC with a large amount of drives being shared on my network over SMB. I was wondering if there would be a way to extend the My Cloud storage to my server PC in order to utilize the storage I have? I just use the WD for photo backup and sync on my mobile devices and would like to continue to do so with the additional storage of my server without purchasing another WD device that I don’t need. Thanks!