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Date:      Tue, 25 Dec 2007 02:44:23 +0100
From:      Peter Schuller <peter.schuller@infidyne.com>
To:        freebsd-fs@freebsd.org
Subject:   Re: How safe is ZFS to use for a home user?
Message-ID:  <200712250244.32695.peter.schuller@infidyne.com>
In-Reply-To: <c68396460712211934q771eb921g90257246abd6298b@mail.gmail.com>
References:  <c68396460712211201x25e83575w419170b64784cbf3@mail.gmail.com> <alpine.BSF.0.99999.0712211927290.85589@ibyngvyr.purzvxnyf.bet> <c68396460712211934q771eb921g90257246abd6298b@mail.gmail.com>

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> Has anybody ever lost data due to any bugs or anything like that?  I'm
> going to use this ZFS as my primary storage medium (and poor man's
> backup solution), so I would be devastated if I lost my entire array
> due to a bug or other issue (aside from losing two hard drives in a
> three hard drive RAID-Z array).

I haven't. Haven't really seen anyone say they have either, in a way that w=
as=20
due to a ZFS bug.

I'm using it for several machines (both private and in production). Two of=
=20
them are doing raidz2 with 5 and 6 disks respectively, another two are doin=
g=20
three-way mirroring.

Based on past experience and behavior in various edge cases (port outtages,=
=20
crashes causing rebuilds, etc), I feel safer with ZFS than without, even if=
=20
the implementation is not as mature as UFS. However, the fact that I "feel=
=20
safe" is of course not very objective nor useful ;)

Just with these select few machines, I have already had snapshots save me a=
t=20
least once and checksumming "sort of" saved me once. And knowing that 'zpoo=
l=20
scrub' really tests your integrity properly is *so* re-assuring I can't eve=
n=20
begin to describe it.

That said, no raid/storage solution is ever going to be perfect. Insert=20
standard rant about keeping backups here.

=2D-=20
/ Peter Schuller

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