thank you for your posting.
well i still have problems understanding how a pool works.
when i have one partition with zfs like this:
/dev/sda1 -> ZFS
/dev/sda2 -> ext2
the only pool is on the sda1 device. in this way i can backup it with the dd 
command.
now i try to understand:
when i have 2 zfs partitions like this:
/dev/sda1 ->ZFS
/dev/sda2 ->ZFS
/dev/sda3 ->ext2
i cannot copy only sda1 with dd and leave sda2 because i destroy the pool then. 
is it possible to seperate two partitions in this way, that i can backup one 
seperatley?
the normal linux way is that every partition is mountet into the file-system 
tree, but is in his way to store data different. so at linux you can mount a 
ext3 and reiserfs together to one file-system tree.
zfs is different. it spreads data over the partitions how it is the best way 
for zfs. maybe i can compare it a little with a raid 0 where data is spread 
over several harddisks. on a raid0 it is impossible to backup one harddisk and 
restore it , in this way i cannot backup a zfs partition and leafe other zfs 
partions.
well i think a snapshot is not what i want. 
i want a image that i can use at any problems. so i can install an new version 
of solaris, installing software. and then say... not good. restore image. or 
whatever i want.
 
 
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