zfs discuss - Aug 2008 - implications of using whole disk and other OS

I read that for performance reasons (using the disks write cache) it is advised
to use whole disks rather than slices for zfs pools. In a dual-boot scenario
with FreeBSD, Linux, Windows XP etc. (of course on another disk with
partitions) are there any risks involved having such a disk without a partition
table? It reminds me of FreeBSD''s "dangerously dedicated"
mode. From
http://www.freebsd.org/doc/en/books/faq/disks.html#DANGEROUSLY-DEDICATED 
> So why it is called ?dangerous?? A disk in this mode does not contain what
> normal PC utilities would consider a valid fdisk(8) table. Depending on how
> well they have been designed, they might complain at you once they are
> getting in contact with such a disk, or even worse, they might damage the
BSD
> bootstrap without even asking or notifying you.
Is there any experience that dedicated zfs disks might be harmed by a not zfs
aware OS/software?
 
 
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