Date: Thu, 12 Dec 2013 13:05:56 +0200 From: Andriy Gapon <avg@FreeBSD.org> To: "Eugene M. Zheganin" <emz@norma.perm.ru> Cc: "freebsd-stable@freebsd.org Stable" <freebsd-stable@FreeBSD.org> Subject: Re: zfs i/o error - all block copies unavailable Message-ID: <52A99894.4080704@FreeBSD.org> In-Reply-To: <52A8C5AF.1000800@norma.perm.ru> References: <52A8C5AF.1000800@norma.perm.ru>
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on 11/12/2013 22:06 Eugene M. Zheganin said the following: > Hi. > > I have a server, it was running 8.2-STABLE/i386 with zfs v28. All of a sudden, > on last reboot I got a big bunch of "zfs i/o error - all block copies > unavailable" messages and server was unable to boot. I decided that one disk is > dying, detached it, and booted successfully. On a next boot I got this again. I > booted from CD, replaced a zpool.cache, and booted successfully once again. On > next reboot I got it again, and was unable to fix it. However (as you may > already know) disks were fine, and all the data wasn't corrupted. Iread a couple > of mailing list posts about this mentioning that this could be an i386 issue, > and decided to deal with in a radical way: I've installed 10.0-BETA1/amd64 > (booted from a LiveCD, mounted an NFS share with /usr/src and obj, and did the > upgrade). Now everything is almost fine, except that I still get this message, > but only once and it seems to be harmless, as the server can still be booted (I > experimented and tried this like a dozen times). > > So, questions: > > - is it really harmless ? > - can I run with this ? > - is there any way to get rid of it ? (probably, without recreating a pool, > because it holds several TBytes of user data) > - and, finally - what does it mean ? A few words about your pool configuration and the disks that it is comprised of... -- Andriy Gapon
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