Storage on RH Linux 7.3

Hi!! Everybody,

I Need your help, I have just purchased a Raid BOX (Direct Attached Storage) of capacity 1.7 TB (since linux does not support more than 1 TB storage). I have Divided it in 2 parts of 858 GB each and are detected as 2 seperate luns by the Adaptec 29160 SCSI Card (LUN 0 and LUN 1).

But the problem is Linux Os does not detect both the LUNS but detects only one LUN of 858 GB.

Please Help

Sundeep