There was no problem as I do not know SAS card will be configured via bios utility. Ctl R. But only problem we are getting is it only support less than 2 TB drives. 
Hi guys, we are planning to add IBM ds3512 with Dell R710 which is having a two port 6gb /E Perc card. Windows 2008 r2 is the operating system installed on server, I have configured storage which shows wwpn number of the card and assign the Lun to the server using wwpn of SAS card. But some how the disk management in server 2008 do not show any other drive other than default disk. Rescan also do not add that assigned disk to the server. The storage and the server is connected with SAS cables having one side and 8470 server side and 8088 storage side.  While Led on card are green. Why operating system Do not show assigned drive? Regards 
6Gb/E SAS PERC card donor show Drive from IBM storage in Windows 2008 storage 
manager