Conecting pv220s to pe2650

Hi, forum!!!

My boss buy a new pv220s to grow the disk space.

In the packaging, I see only a cable w2n, 4m.

I need to buy to scsi/raid board to put on the pe2650, and go on.

But, I don't know what is the better option.

My boss buy only 3 disks, and, then, my options are a minimal raid-5 in software, on in hardware.

If my option is "raid by software", I sow the board:

LSI Loci