I am trying to install an ultra-wide scsi drive using an adaptec 2940UW
(No, i'm not going to boot from it.)

When I connect the drive, the system disk, which was at sd0 is suddenly at
sd1 and the drive on the adaptec card is sd0.  How do I resolve this
problem?  I worry about relabeling the system disk as sd1 if I need to
remove the new disk.  Is the system disk on the wrong internal scsibus
(It's showing up as scsibus2)?