HP B120i Raid showing two disk in CentOS7

We have HP DL360e G8 with B120i RAID controller (which is FakeRAID) and i have configured RAID 1 in RAID configuration utility. After CentOS 7 installation when i run fdisk -l i am seeing two individual disk with same partition size. I should suppose to see single disk (/dev/sda) right? Disk /dev/sda: 500.1 GB, 500107862016 bytes, 976773168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk label type: dos Disk identifier: 0x00020b93 Device Boot Start End Blocks Id System /dev/sda1 * 2048 526335 262144 83 Linux /dev/sda2 526336 8914943 4194304 82 Linux swap / Solaris /dev/sda3 8914944 976707583 483896320 8e Linux LVM Disk /dev/sdb: 500.1 GB, 500107862016 bytes, 976773168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk label type: dos Disk identifier: 0x00020b93 Device Boot Start End Blocks Id System /dev/sdb1 * 2048 526335 262144 83 Linux /dev/sdb2 526336 8914943 4194304 82 Linux swap / Solaris /dev/sdb3 8914944 976707583 483896320 8e Linux LVM