For the not reachable issue need this.
As for the controller, that link mentions Marvell, but you don't have any Marvell controller, I see two dual port Asmedia controllers, one of them with 3 disks connected, so there's a SATA multiplier in the controller or it's connected to an external enclosure using one, in either case those are not recommended, but most likely not the reason for the current issue.