Rohanil, To format the drives, create  multiple drive RAID 0 on these hard drives and perform a slow initialization. This can be done within the RAID BIOS utility interface.
I am using Dell R710 server which has raid controller PERC 6/i BIOS utility. I want to use few old hard disks on this server. As they are old disks, I first want to format them. How can I format those physical hard disks using RAID BIOS utility? I have experience of formatting of physical hard disks on other types of RAID controllers so I am looking if there is a way on PERC 6/i.  Thanks Rohanil
Format Physical Disk using PERC 6/i BIOS utility