Question concerning Raid Manager default partition table

[Andreas Sindermann]

James McPherson writes:
 > Andreas Sindermann writes:
 > 
 > > Why not simply use slice 2 which covers the whole LUN?
 > 
 > The short answer to this is, because if you do then your configuration is not 
 > supported. The longer answer is that there are some applications (dd, backups 
 > etc) for which you need to be able to grab the _whole_ disk all at once without 
 > worrying about partitions. 

Hmm, I can't see why slice 2 is special in this case. It's a slice
that covers all blocks, just as intended (she wanted to have a slice
covering the complete disk). What's the difference between slice 0
covering all blocks and slice 2 covering all blocks?

Andreas