what happens to pool if ZIL dies on ZFS v14

[Freddie Cash]

On Fri, Sep 17, 2010 at 9:18 AM, Jeremy Chadwick
<freebsd at 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 at gmail.com> wrote:
>> > Bryan thank you for the detailed answer.
>> >
>> > Assuming the ZIL SSD died, what steps would I follow to recover the pool? (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.  You will lose any data that was
>> 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=1) ?

I'm not sure what you mean by that.

This (dead ZIL == dead pool) only applies to separate log (slog) devices.

-- 
Freddie Cash
fjwcash at gmail.com