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Date:      Sat, 27 Mar 2010 20:12:52 -0700
From:      Ali Mashtizadeh <mashtizadeh@gmail.com>
To:        Aristedes Maniatis <ari@ish.com.au>
Cc:        freebsd-fs@freebsd.org, Dan Naumov <dan.naumov@gmail.com>
Subject:   Re: boot code compatibility with ZFS
Message-ID:  <440b3e931003272012j63014342ib31d93ff2317af7e@mail.gmail.com>
In-Reply-To: <4BAEAC62.4060401@ish.com.au>
References:  <cf9b1ee01003271747w6cea170bs1ea6ad49023d0e82@mail.gmail.com> <4BAEAC62.4060401@ish.com.au>

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Yes the code includes support for raidz2.

On Sat, Mar 27, 2010 at 6:09 PM, Aristedes Maniatis <ari@ish.com.au> wrote:
> On 28/03/10 11:47 AM, Dan Naumov wrote:
>>>
>>> FreeBSD 7.1: ZFS version 6, no ZFS boot capability
>>> FreeBSD 7.2: ZFS version 6, zfsboot only, boot from single vdev pool on=
ly
>>> FreeBSD 7.3: ZFS version 13, zfsboot broken, no ZFS boot capability
>>>
>>> FreeBSD 8.0: ZFS version 13, gptzfsboot and zfsboot, boot from mirrored
>>> pool
>>> or single vdev, RAIDZ not supported, degraded pool not supported
>>
>> I am not really sure what gives you the idea that booting off a
>> degraded pool is not supported in 8.0. I have a zfsroot/boot
>> configuration sitting on a mirror and I have tested yanking one drive
>> at a time (resulting in a degraded pool) and booting with only 1 disk
>> present and it worked just fine.
>>
>> - Sincerely,
>> Dan Naumov
>
> Ah, thanks for that. I just read that on one of the FreeBSD lists recentl=
y.
> Can't see the exact post now, but I'm happy to be wrong, perhaps that was=
 an
> older limitation in a previous release.
>
> From Ali's comment, I guess we could add for the future release of 8.1:
>
> FreeBSD 8.1: ZFS version 13, gptzfsboot and zfsboot, boot from mirrored
> pool, RAIDZ or single vdev.
>
> Does that include RAIDZ2?
>
>
> I'm happy to write up my results for the wiki (although editing seems to =
be
> closed to only certain people), once I have some definitive answers for w=
hat
> is supported where. And hopefully there will be a 7.3p1 which restores ZF=
S
> booting ability.
>
>
> Regards
>
> Ari Maniatis
>
>
> --
> -------------------------->
> Aristedes Maniatis
> ish
> http://www.ish.com.au
> Level 1, 30 Wilson Street Newtown 2042 Australia
> phone +61 2 9550 5001 =C2=A0 fax +61 2 9550 4001
> GPG fingerprint CBFB 84B4 738D 4E87 5E5C =C2=A05EFA EF6A 7D2E 3E49 102A
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--=20
Ali Mashtizadeh
=D8=B9=D9=84=DB=8C =D9=85=D8=B4=D8=AA=DB=8C =D8=B2=D8=A7=D8=AF=D9=87



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