I assume that the yottamaster device runs Linux, just like 99% of other such devices. as to whether it uses linux software raid or some cheap (megaraid???) chipset, I don't know, nor know how to tell. but I'll check that URL you sent and see what happens.
Just add "x-systemd.automount,x-systemd.idle-timeout=10min" in the fstab mount options , or create an ".mount" + ".automount" entries for it (autofs is also an option) and test.
The "x-systemd.automount" option will tell systemd to create a ".automount" unit which will monitor the mount point and automatically mount your drive, while the idle-timeout will tell systemd to automatically umount the share when not in use (ls, df, du and others count as usage and reset the counter). Also , if you use 7.6 - there is a bug in sysstat that forces autofs and systemd's automounter to mount the share.
Best Regards, Strahil Nikolov