I currently have a RAID 10 (6x 2TB) running in an Intel IMSM container ("fakeraid", firmware RAID) on Ubuntu 16.04 on an ASUS H170M-PLUS (Intel H170 chipset).
I'm using all 6 SATA ports on the MOBO and want to add a PCIe JBOD controller and add the disks on that to the IMSM container.
Is this a possibility? Will the Intel Rapid Storage firmware add disks from a different controller?