On Monday 11 July 2011 16:12, Kaushal Shriyan wrote: > On Mon, Jul 11, 2011 at 8:34 PM, Colin Coles <colin at wemoto.com> wrote: > > On Monday 11 July 2011 15:49, Kaushal Shriyan wrote: > >> Hi, > >> > >> I have HP DL 180 G6 2U Server loaded with CentOS 5.6. Can someone > >> please suggest any good Hardware Raid Controller Card for the > >> mentioned Hardware and OS. The reason being this server comes with > >> Onboard Sata Controller chipset (HP Smart Array B110i Controller). > >> This server has SATA Harddrive - 4 Nos of 500GB each and the OS > >> doesnot detect it. > > > > Have you set up the array using the disk setup utility? > > Hi, > > Yes I have setup RAID 1+0 Array using HP Smart Controller B110i BIOS. > It shows usable disk space of approx 940 GB but the OS does not see it > instead it shows all the 4 * 500 GB HDD. > Try discarding the array and rebuilding, perhaps using a different RAID level, see if that makes any difference. I have vaguely similar machines and have not encountered this type of problem, and I'm pretty sure all this range are certified for RHEL.