iPhoto Library on Drobo 5N2 Query


Please can anyone advise how to store iPhoto library on a Drobo 5N2? I have successfully moved my iTunes library and it is working fine. iPhoto will not see the library when moved to a Drobo share. I have read that I may need to create a sparse disk image and put it onto the share and then store the iPhoto library in the sparse image. Is this correct? or is there another way?
Kind Regards