[luau] Mililani's Sun server - (new) problems

[Vince Hoang]

A few thoughts:

+ Suggestions to minimize future risk
  - modify the boot-device list in the bootprom so that
    a startup only attempts to boot from the two root disks
  - disable autonegotiation on the network devices
    via /etc/system or ndd
  - enable logging on each ufs filesystem

+ Performance tuning
  - add noatime to filesystems that do not store mail
  - update /etc/system to have higher semæphore and
    shared memory segment values
  - verify that the lab network is switched
    to isolate collision domains

-Vince