Software RAID in NW6.5 SP8

I'm wanting to set up a RAID 1 on my new Netware 6.5 SP8 server. I want mirrored hard drives, that way if one crashes, I've got the other one for redundancy. My master hard drive is in and the server is running perfectly. However, when I attach the secondary hard drive and attempt the RAID config in iManager, I get some error messages about storage pools. Does anyone have step-by-step instructions for creating a RAID 1 array in iManager?

Thanks!