It is tunable, I don't remember the exact tunable name... Arc_metadata_limit or 
some such.

  -- Garrett D'Amore

On May 8, 2011, at 7:37 AM, "Edward Ned Harvey" 
<[email protected]> wrote:

>> From: Garrett D'Amore [mailto:[email protected]]
>> 
>> Just another data point.  The ddt is considered metadata, and by default the
>> arc will not allow more than 1/4 of it to be used for metadata.   Are you 
>> still
>> sure it fits?
> 
> That's interesting.  Is it tunable?  That could certainly start to explain 
> why my arc size arcstats:c never grew to any size I thought seemed 
> reasonable...  And in fact it grew larger when I had dedup disabled.  Smaller 
> when dedup was enabled.  "Weird," I thought.
> 
> Seems like a really important factor to mention in this summary.
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