A new ARC case:
There is a long-standing RFE for zfs to be able to describe what has
changed between the snapshots of a dataset. To provide this
capability, we propose a new 'zfs diff' sub-command. When run with
appropriate privilege the sub-command describes what file system level
changes have occurred between the requested snapshots. A diff between
the current version of the file system and one of its snapshots is
also supported.
Five types of change are described:
o File/Directory modified
o File/Directory present in older snapshot but not newer
o File/Directory present in newer snapshot but not older
o File/Directory renamed
o File link count changed
http://arc.opensolaris.org/caselog/PSARC/2010/105/
Via c0t0d0s0.org
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