Hi,
Obviously, moving ('renaming') files between ZFSs on the same zpools is just
like a move between any other two filesystems, requiring full copy of the data
and deletion of the old file.
I was wondering if there is (and why there isn't) an optimization inside ZFS,
thus that copy between ZFSs on the same zpool would be instantaneous or
near-so. After all, no blocks /really/ need to be copied, it's more about ZFS
finding out that it's a move within the same zpool and inode modifications at
the source / target.
Thoughts?
- Yaniv
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