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Subject: [Bug 216364] ZFS ARC cache is duplicating data? The cache size gets
 bigger then the pool.
Date: Wed, 08 Feb 2017 11:12:29 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D216364

--- Comment #9 from Andriy Gapon <avg@FreeBSD.org> ---
(In reply to k_georgiev from comment #7)
I haven't done any calculations, but it's quite possible that you are not
having any problem.  You are comparing the size of the data on disk where s=
ome
of it is rather well compressed with the size of the data in ARC where the =
data
is uncompressed (and after the compressed ARC support was added, a cached
buffer could be compressed, uncompressed or both).

Check what zfs get logicalused zroot gives you.

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