There are better ways to snapshotting
Posted May 7, 2009 20:54 UTC (Thu) by anton
Parent article: The two sides of reflink()
Many posters seem to think of snapshotting as a good use of reflinks,
but snapshots should be created on the whole file system at once,
atomically (so you get a snapshot that is consistent across files).
File systems like btrfs have this functionality, and one can also use
LVM for that (with a little fs support), so snapshots don't seem to be
a good use and justification of reflink().
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