drives installed are
HDD1: WD red plus 6tb
HDD2: WD red plus 6tb
SSD1 : XPG sx6000 pro 500gb(intended to use for Caching)
SSD2 : XPG sx6000 pro 500gb(intended to use for Caching)
SSD3 : XPB SX8200 pro 2TB
Currently i set up the 2 SSD(1 & 2) as RAID 1 just to test thing out. i am trying to set up the 2 HDD in RAID 1 , the 2 500gb ssd as cache read/write, and the extra SSD as normal volume(had one i removed from old rig of mine)

Anyhelp is much appriciated.