Clariion AX4 Vault Pack replacement.

Hi!

There is a problem - I need to replace 4 drives with OS on Clariion AX4. The package from EMC include 4 discs and a separate sticker for this drives (0-1-2-3) . Also i have 2 new clear same drives.  In what order to install them in array?  What is the correct procedure for this vault pack replacement?

Thanks.