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Date: Thu, 29 Aug 2013 12:01:31 +0300
From: Andriy Gapon <avg@FreeBSD.org>
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To: Maurizio Vairani <maurizio.vairani@cloverinformatica.it>
Subject: Re: Boot problem if a ZFS log device is missing
References: <521F05F0.4090607@cloverinformatica.it>
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on 29/08/2013 11:27 Maurizio Vairani said the following:
> 
> I am able to boot the PC without a cache device but not without a log device. Why ?

The log could potentially contain uncommitted entries.  Without the log device
there is no knowing if it did or did not.  And if it did then the pool is
inconsistent state without the log device and so it can not be imported.

The cache is not persistent and so there is nothing needed from it upon a boot.

-- 
Andriy Gapon