Ran into that as well (and I have that same storage device)
The entire issue was an older ATTO fiber channel 4gb card.
Also I tested an apple branded fiber card and that didn’t work either.
At that time coincidentally I moved a caldigit storage array from another room
that was much bigger capacity and needed there. It was pci-express direct and works
fine in yosemite though.
The only solution since ATTO didn’t make an updated driver for the card i had
was to spend almost a grand on a newer one that did have a yosemite driver.
I declined that idea and now have it on one of our legacy use systems running mountain lion.