re-activating a deleted Volume

I have a tower Raid system with 8 2t drives. One of the drives was bad so in Disk manager, I deleted the volume. Now, I'd like to re-add a new drive to replace that one, but Disk manger will not recognize that drive even though I can see it in device manager and I've changed the drive positions in the Raid box. Is there a way to force Disk manger to see a drive again? (same one or different drive?)

is is rais 5 or raid 1 or 0? hardware raid or software raid?
Or was the failed disk just a "simple volume"

I was simply "stripped" through Disk Manger into on VD. (that was the option in Disk Manger) I haven't gotten to the RAID part yet since I cannot access all the drives.