"Well, really," said Syme, "I don't know any profession of which mere willingness is the final
test."
"I do," said the other—"martyrs. I am condemning you to death. Good day."
Can RAID1 work on the nslu2 for big drives? Yes! I've got two 750 GB SATA drives hooked in, and it's humming along. I had to upgrade to SlugOS5 in order to be able to boot to the md device. Be ready for long RAID sync times though... it's taking about 21 hours to sync a 650 GB partition :)