Nicolas Williams wrote:
On Mon, Jan 12, 2009 at 12:14:09PM -0500, David Briand wrote:
Is there a simple way to convert subdirectories in a ZFS pool into data
sets?
An inefficient and complicated, but fast way is to snapshot and clone
the dataset containing the directory in question, then remove everything
from the clone except the directory in question, move its contents to
the root of the clone dataset, remove the old directory, then mount the
clone over the desired directory in the original dataset.
This is inefficient because it cause references from the snapshot to all
the contents that you've removed, which means the space won't be freed.
Thanks, but no thanks!
Or you can create a new dataset, move the files over, and rename/mount
the new dataset into place.
This is the process I've been using, just looking for a more
elegant solution.
It'd be awesome to have a native directory->dataset conversion feature
in ZFS. And, relatedly, fast moves of files across datasets in the same
volume. These two RFEs have been discussed to death in the list; see
the archives.
Agreed. I did see these were much debated topics.
Nico
-dave
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