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Date:      Fri, 15 Jun 2018 04:33:06 +0000
From:      bugzilla-noreply@freebsd.org
To:        doc@FreeBSD.org
Subject:   [Bug 229035] ZFS tuning info in handbook is out of date
Message-ID:  <bug-229035-9@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D229035

            Bug ID: 229035
           Summary: ZFS tuning info in handbook is out of date
           Product: Documentation
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: Documentation
          Assignee: doc@FreeBSD.org
          Reporter: FreeBSD@ShaneWare.Biz

In 19.6.1 of the handbook it says "vfs.zfs.arc_max...This value can only be
adjusted at boot time..."

This tunable has been dynamically adjustable since Jul 2016 which applies to
10.4 and 11.x

base r302714 for stable/10 with stable/11 being available from initial
creation.

vfs.zfs.arc_max, vfs.zfs.arc_min and vfs.zfs.arc_meta_limit can now be adju=
sted
with sysctl(8) while vfs.zfs.vdev.cache.size is now the only(?) tunable lef=
t to
set at boot time.

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