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Date:      Tue, 15 Sep 2020 16:10:05 -0700
From:      Michael Sierchio <kudzu@tenebras.com>
To:        FreeBSD Questions <freebsd-questions@freebsd.org>
Subject:   Re: partitioning server with 2 hard drives
Message-ID:  <CAHu1Y70fkMavOh7Dfw5j9ifC1BwihoCxCua3ufauOtTqt=v_CQ@mail.gmail.com>
In-Reply-To: <20200915231901.e767350415aad298732f72cc@sohara.org>
References:  <MWHPR06MB32479D288A8D10AD73FC6A329A200@MWHPR06MB3247.namprd06.prod.outlook.com> <20200915231901.e767350415aad298732f72cc@sohara.org>

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On Tue, Sep 15, 2020 at 3:19 PM Steve O'Hara-Smith <steve@sohara.org> wrote=
:

>
>
>         I would go for a ZFS mirror using the rest of the drives, set up
> a weekly scrub and never worry about a drive failure again.
>

When, not if, a drive fails, will you find one with precisely the same
geometry / capacity to replace the failed drive and remirror?  Can you do
so before the other drive fails (which might be statistically likely)?

There are good online MMTDL, MTTF, MTBF numbers for various raid levels for
ZFS. None would lead me to be so glib.

--=20

"Well," Brahm=C4=81 said, "even after ten thousand explanations, a fool is =
no
wiser, but an intelligent person requires only two thousand five hundred."

- The Mah=C4=81bh=C4=81rata



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