Date: Wed, 31 Oct 2012 09:23:38 +0100 From: "Ronald Klop" <ronald-freebsd8@klop.yi.org> To: "Paul Wootton" <paul-freebsd@fletchermoorland.co.uk> Cc: freebsd-fs@freebsd.org Subject: Re: ZFS RaidZ-2 problems Message-ID: <op.wm1axoqv8527sy@ronaldradial.versatec.local> In-Reply-To: <5090010A.4050109@fletchermoorland.co.uk> References: <508F98F9.3040604@fletchermoorland.co.uk> <1351598684.88435.19.camel@btw.pki2.com> <508FE643.4090107@fletchermoorland.co.uk> <op.wmz1vtrd8527sy@ronaldradial.versatec.local> <5090010A.4050109@fletchermoorland.co.uk>
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On Tue, 30 Oct 2012 17:32:10 +0100, Paul Wootton <paul-freebsd@fletchermoorland.co.uk> wrote: > On 10/30/12 16:10, Ronald Klop wrote: >> On Tue, 30 Oct 2012 15:37:55 +0100, Paul Wootton >> <paul-freebsd@fletchermoorland.co.uk> wrote: >> >>> On 10/30/12 12:04, Dennis Glatting wrote: >>>> I've had this problem too. Here is what I can tell you for my case. >>>> ... I replaced the card, the cable, and the disks themselves leaving >>>> only one other possibility -- the power supply. The faulting array >>>> was on a separate cable from the power supply. I replaced the power >>>> supply, going from a 1,000W to 1,300W, and the power cables to the >>>> disks. Not a problem since. >>> >>> While I can accept that I might have a bad power supply. or cables, my >>> main concern is that I have only 1 drive showing as "Unavail" on a >>> RAIDZ-2 and the pack is showing "Faulted". >>> I would have expected that pack to continue working with 2 bad drives, >>> and would have failed if I had 3rd one fail >>> >>> Paul >> >> Isn't your problem something else than a non-working pool with one >> broken disk. I guess it still worked before you exported it. Your >> actual problem is 'zpool import' does not work for your pool. Maybe >> there is more broken than one disk. >> >> Why did you export/import to fix anything in stead of replacing the >> faulted disk? >> >> (I'm not into the code details of ZFS, so can't help you with >> everything.) >> >> Ronald. >> >> > The pool was marked as faulted before I tried exporting/importing.ZFS > should have marked the pool as degraded, so I wondered if I exported and > then reimported the pool, ZFS would taste each of the disks and imported > the pool in a degraded mode. Weird. I don't know what is happening. I hope somebody else knows it. Ronald.
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