Darren J Moffat skrev 2010-05-10 10:58:
On 08/05/2010 21:45, P-O Yliniemi wrote:
I have noticed that dedup is discussed a lot in this list right now..
Starting to experiment with dedup=on, I feel it would be interesting in
knowing exactly how efficient dedup is. The problem is that I've found
no way of checking this per file system. I have turned dedup on for a
few file systems to try it out:
You can't because dedup is per pool not per filesystem. Each file
system gets to choose if it is opting in to the pool wide dedup.
So dedup is operating on the pool level rather than the file system
level, so if I have two file systems with dedup=on, they share the
blocks and checksums pool wide ?
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