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Date:      Mon, 15 Jul 2019 17:15:51 +0100
From:      Steve O'Hara-Smith <steve@sohara.org>
To:        freebsd-questions@freebsd.org
Subject:   Re: dead slow update servers
Message-ID:  <20190715171551.4398e18aae6b91e2ee01333c@sohara.org>
In-Reply-To: <871ryrl4vz.fsf@toy.adminart.net>
References:  <87sgrbi3qg.fsf@toy.adminart.net> <20190712171910.GA25091@neutralgood.org> <871ryuj3ex.fsf@toy.adminart.net> <CAGLDxTW8zw2d%2BaBGOmBgEhipjq6ocn536fH_NScMiDD7hD=eSw@mail.gmail.com> <874l3qfvqw.fsf@toy.adminart.net> <20190714011303.GA25317@neutralgood.org> <87v9w58apd.fsf@toy.adminart.net> <0ed2aef9-0cb8-b7ab-711e-34f139c60285@osfux.nl> <87zhlgqlqz.fsf@toy.adminart.net> <20190715055400.8528e4ea2b4b575b8649d7b1@sohara.org> <871ryrl4vz.fsf@toy.adminart.net>

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On Mon, 15 Jul 2019 17:00:16 +0200
hw <hw@adminart.net> wrote:

> Steve O'Hara-Smith <steve@sohara.org> writes:
> 
> > On Mon, 15 Jul 2019 00:44:52 +0200
> > hw <hw@adminart.net> wrote:
> >
> >> What is the point of doing this?  When you have hardware RAID, just use
> >> it rather than ZFS.
> >
> > 	ZFS is a far better solution than hardware RAID and any other
> > file system. The only reason for using hardware RAID is because you
> > cannot use ZFS for some reason.
> 
> It's more like the only reason not to use hardware RAID is when you
> don't have it.

	Nope, I have hardware RAID available I leave it disabled and run
ZFS on drives as JBOD.

> ZFS is just another file system with its advantages and disadvantages.
> That doesn't make it generally the best solution.

	ZFS is a file system with an *integrated* redundancy layer, the
coupling between the two has benefits than cannot be matched by separate
RAID and filesystem.

> You could even say ZFS is generally the worst solution because it is
> incompatible with common hard- and software.  Nonetheless, under the
> right circumstances, ZFS can still be the best solution.  And why aren't
> there any hardware ZFS controllers?

	We call them file servers or NAS boxes depending on which decade we
learned our terminology.

-- 
Steve O'Hara-Smith                          |   Directable Mirror Arrays
C:\>WIN                                     | A better way to focus the sun
The computer obeys and wins.                |    licences available see
You lose and Bill collects.                 |    http://www.sohara.org/



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