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Date:      Sat, 21 Feb 2015 20:08:38 +0100
From:      Rainer Duffner <rainer@ultra-secure.de>
To:        Jordan Hubbard <jkh@ixsystems.com>
Cc:        freebsd-fs@freebsd.org, Christian Baer <christian.baer@uni-dortmund.de>
Subject:   Re: The magic of ZFS and NFS (2nd try)
Message-ID:  <C64FC95C-D98B-4EAF-83CC-E443B56B38B2@ultra-secure.de>
In-Reply-To: <D07A3E61-1871-48C0-B4AB-0EA1E994A4FC@ixsystems.com>
References:  <4257601.p3oiXZFr4n@falbala.rz1.convenimus.net> <C2F282EB-FA11-4676-93E0-68112EB03A1D@ultra-secure.de> <12103095.viZFqgegqA@falbala.rz1.convenimus.net> <D07A3E61-1871-48C0-B4AB-0EA1E994A4FC@ixsystems.com>

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> Am 21.02.2015 um 19:23 schrieb Jordan Hubbard <jkh@ixsystems.com>:
>=20
>=20
>> On Feb 21, 2015, at 9:36 AM, Christian Baer =
<christian.baer@uni-dortmund.de> wrote:
>>=20
>> But why shouldn't I use /etc/exports? I have read people writing this =
(don't=20
>> use /etc/exports) in forums when searching for answers, however the =
current=20
>> manpage for zfs says this:
>=20
> FreeNAS has more experience with sharing things from ZFS than anyone =
else in the BSD community (that=E2=80=99s not hyperbole, it=E2=80=99s =
simply fact).  We don=E2=80=99t use any of the zfs sharing flags.  Those =
were intended more for Solaris (sharesmb, for example - FreeBSD lets you =
do that, but what does it *mean* when you don=E2=80=99t have a native =
CIFS service?).   FreeBSD has never integrated ZFS=E2=80=99s notion of =
sharing or, for that matter, a number of other things like drive hot =
sparing and automatic replacement, and you=E2=80=99re seeing the results =
of ZFS=E2=80=99s solaris roots still not lining up 100% with their new =
FreeBSD home.  That=E2=80=99s all.
>=20
> I would simplify things, just as FreeNAS has (for good reasons), and =
simply have ZFS be =E2=80=9Ca filesystem=E2=80=9D from FreeBSD=E2=80=99s =
perspective and share it just as you would UFS.



Interesting.

I admit I don=E2=80=99t use NFS v4.
Is it much faster than NFS v3 these days?

But I=E2=80=99ve always added the line from exports(5) into the sharenfs =
property like

zfs get sharenfs datapool/nfs/ds3-documents
NAME                        PROPERTY  VALUE                              =
                         SOURCE
datapool/nfs/ds3-documents  sharenfs   -maproot=3D1003 -network =
10.10.10.0 -mask 255.255.255.0  inherited from datapool/nfs

These lines get written into /etc/zfs/exports

I like it that way because if a filesystem is destroyed, I don=E2=80=99t =
have to remember removing it from /etc/exports.

I also admit I=E2=80=99m heavily influenced by Solaris on this =
particular setting=E2=80=A6








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