Apparently I'm a post-whore tonight.

I was just doing a little research, as it's been quite a while since I've done this (the proper term is "multi-initiator SCSI", BTW), and it seems that the SCSI spec explicitly allows for multiple initiators. In fact, it seems that they are actually allowed to both be active at the same time. I didn't realize that. The upshot of that, if it's true, is that you could conceivably have something set up to allow both computers to function at the same time, probably not accessing the same disks, but allowing one to take over the functions and storage of the other if and when the other goes down. Pretty snazzy: performance and redundancy.