Increasing Drive Space Netware 6 server

I want to replace two 36 GB HD’s in a compaq server with RAID 0 (disk mirroring configuration) with two 72 GB HD’s. In my test environment I was able to replace the two 36 GB HD’s with two 72 GB HD’s without any issues however Netware does not see the additional drive space. Can anyone recommend a software solution? An older version of Server Magic did not see the additional either. I want to keep this process as simple as possible. Thanks!