I had a SAS drive fail in my RAID 5 array Drive 0:1:3. 

I replaced the SAS drive with a comparable SATA drive. I unplugged the failed drive, threw in the new sata drive.

The server went off line for about 10 mins, after replacing the drive, then everything started working as expected.

I though the array supposed to automatically rebuild? In Open Manage do what do I have to do to insert the drive into the array and rebuild?