Date: Fri, 30 Aug 2013 10:17:11 +0200 From: Maurizio Vairani <maurizio.vairani@cloverinformatica.it> To: Andriy Gapon <avg@FreeBSD.org> Cc: freebsd-fs@FreeBSD.org, freebsd-stable@FreeBSD.org Subject: Re: Boot problem if a ZFS log device is missing Message-ID: <52205507.4030802@cloverinformatica.it> In-Reply-To: <521F0DEB.20408@FreeBSD.org> References: <521F05F0.4090607@cloverinformatica.it> <521F0DEB.20408@FreeBSD.org>
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On 29/08/2013 11.01, Andriy Gapon wrote: > 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. > Thank you for the clear and concise reply. Yesterday I have done some test. If I remove the stick from the USB port, before the shutdown the PC, it don't crash but continues to works. Then I am able to reboot the laptop without inserting the stick with a pool that works in degraded mode. From the end user point of view a PC should always boot, even with a missing ZFS log device. Regards Maurizio
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