If so, be patient. In fact it is a high-wanted feature, and the ZFS
team is working hard on it right now. You can learn more about this
feature following the Shrinking a
zpool?
thread on the zfs-discuss forum on opensolaris.org. Here are some
chosen excerpts.
From Matthew A. Ahrens #1:
Regardless of where you want or don't want to use shrink, we are actively working on this, targeting delivery in s10u5.
From Matthew A. Ahrens #2:
Yeah, the implementation is nontrivial. Of course, this won't have any impact on snapshots, clones, etc. and will happen on-line. Any other solution would be unacceptable.
Howdy... I really like these kind of short and concise answers!