I want ot expand my raid 5 size

I have a EX4100 and I have updraded 2 of my disks to increase the size of my volume in raid 5. When I try to extand the raid 5 the only option is spanning. I can I integrate it to my raid 5 volume (I have 12tb of spanning!!!).

Hello ed1972mtl,

You should contact WD Support for better understanding of RAID extend concern.