My friend and colleague Tom Bridge sent me a useful bit of information for those interested in the Mac Mini Server…
“Mirrored Apple RAID and SoftRAID cause kernel panics under 10.6 and 10.6.1 server.”
What this means is that the Mac Mini Server is not really all that useful until they resolve this issue, and anyone updating their software RAID-based servers should hold off as well.
Further research indicates that some people feel that it has to do with custom block sizes. I was unable to ask Tom whether his experience with this bug was the result of custom block sizes or not, although I doubt he would have done so.
This probably affects Snow Leopard client as well.