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Date: Fri, 17 Sep 2010 09:21:54 -0700
Message-ID: <AANLkTi=NX6koyj_xmadrTw8OvgCATPA=EQnTPmAxNGpo@mail.gmail.com>
From: Freddie Cash <fjwcash@gmail.com>
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Subject: Re: what happens to pool if ZIL dies on ZFS v14
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On Fri, Sep 17, 2010 at 9:18 AM, Jeremy Chadwick
<freebsd@jdc.parodius.com> wrote:
> On Fri, Sep 17, 2010 at 09:17:11AM -0700, Freddie Cash wrote:
>> On Fri, Sep 17, 2010 at 8:35 AM, Gil Vidals <gvidals@gmail.com> wrote:
>> > Bryan thank you for the detailed answer.
>> >
>> > Assuming the ZIL SSD died, what steps would I follow to recover the po=
ol? (i
>> > hope it is recoverable).
>>
>> If you are running ZFSv1 through ZFSv18 and your log device dies, your
>> pool is dead, gone, unrecoverable, no secret prize, no continues, do
>> not pass go, etc, etc, etc.
>>
>> If you are running ZFSv19 or newer and your log device dies, you can
>> remove the dead device and carry on. =C2=A0You will lose any data that w=
as
>> in the ZIL, but the pool will be intact.
>
> Given the severity of this predicament, then why is it people are
> disabling the ZIL (via vfs.zfs.zil_disable=3D1) ?

I'm not sure what you mean by that.

This (dead ZIL =3D=3D dead pool) only applies to separate log (slog) device=
s.

--=20
Freddie Cash
fjwcash@gmail.com