the powervault 220s just recognize the half range of disk, the other range of disk are disable, this powervault is connected to a perc 4e/dc in the channel B, in the channel A is pluged with a powervault 221s, the chanel B is plugged in the EMM primary chanel of the powervault 220s, what can i do to recognize all the range of disk, the switch of the control mode is in joined, so i supposed that i can use all the scsi disks, any sugestion or a diagram, thanks.