> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss-
> boun...@opensolaris.org] On Behalf Of devsk
> 
> Thanks, Michael. That's exactly right.
> 
> I think my requirement is: writable snapshots.
> 
> And I was wondering if someone knowledgeable here could tell me if I
> could do this magically by using clones without creating a tangled mess
> of branches, because clones in a way are writable snapshots.

Oh.  If the goal is to reclaim disk space that is consumed by certain files
in snapshots, without destroying the whole snapshot ... Maybe some day, but
for now it's not possible.  And probably "someday" will never come.  Because
consensus seems to be that writable snapshots (a) would be really difficult
to implement and (b) seems to go against the moral fibers of the people who
might think about being able to implement it.

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