Sometimes you just have bad luck:
the blip.tv blog » hardware issue: "Looks like the failure is more serious than simply a primary disk array. We lost two disks simultaneously in a big storage server called a RAID 5 array. Our RAID 5 arrays are supposed to be able to lose any two disks and keep running, but you can’t really lose two disks simultaneously. It’s all a bit technical, and I’ll spare you the details. Almost immediately after that happened — you really can’t make this up — the power went out at our secondary datacenter."
# Jul 30, 2006