RAID array

Yes, it means I could only use Linux currently for storage if I went for ZFS/FUSE.  This is a
significant weakness in the Linux story - perhaps btrfs will go some way to fixing this, but
overall it seems that Linux RAID and associated sector-checksumming filesystems are a long way
behind where it needs to be.  

I don't think this stuff is particularly hard to do, but it does require some focused work on
btrfs and on RAID improvements, and there are patent risks due to the Sun/NetApp patent
lawsuits, of course.