In message 200004060020.RAA26503@turok.netapp.com, Karl Swartz writes:
It's a somewhat minor nit, but I feel obliged to point out that while NetApp uses RAID 4, and a RAID 4 set will croak if it suffers a double disk failure, it's not necessarily true that a double disk failure will take out a filer.
As someone who has lost 3 disks at the same time (in 3 different raid groups) and not lost a filer, I agree :P
Mark