Date: Wed, 31 Jan 2007 21:12:02 +0100 From: "Simon L. Nielsen" <simon@FreeBSD.org> To: Oliver Fromme <olli@lurza.secnetix.de> Cc: freebsd-geom@FreeBSD.ORG Subject: Re: gmirror or ata problem Message-ID: <20070131201201.GB973@zaphod.nitro.dk> In-Reply-To: <200701300851.l0U8pEkO005250@lurza.secnetix.de> References: <200701300851.l0U8pEkO005250@lurza.secnetix.de>
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On 2007.01.30 09:51:14 +0100, Oliver Fromme wrote: > This is strange. gmirror just detached one of its disks > for no apparent reason. I've built a mirror consisting of > the components ad0 and ad1 (both SATA drives). It has > been running fine. This is RELENG_6 from 2006-12-20. > > Yesterday evening ad1 was detached. There is no other > error message logged on console or in the logs (i.e. no > I/O error such as a bad sector or anything). There was > no particularly high load at that time. In fact, the > machine had been under much higher load before, without > anything bad happening. > > This is from the logs: > > Jan 29 19:10:13 pluto -- MARK -- > Jan 29 19:20:26 pluto kernel: ad1: FAILURE - device detached > Jan 29 19:20:26 pluto kernel: subdisk1: detached > Jan 29 19:20:26 pluto kernel: ad1: detached > Jan 29 19:20:26 pluto kernel: GEOM_MIRROR: Cannot write metadata on ad1 (device=gm0, error=6). > Jan 29 19:20:26 pluto kernel: GEOM_MIRROR: Cannot update metadata on disk ad1 (error=6). > Jan 29 19:20:26 pluto kernel: GEOM_MIRROR: Cannot update metadata on disk ad1 (error=6). > Jan 29 19:20:26 pluto kernel: GEOM_MIRROR: Device gm0: provider ad1 disconnected. > Jan 29 19:50:13 pluto -- MARK -- I have seen similar problems on my graid3. I think it's simply the disk which stops responding to commands, or at least ata(4) can't talk to the disk anymore... I see it on: ad10: 305245MB <WDC WD3200SD-01KNB0 08.05J08> at ata5-master SATA150 ad12: 305245MB <WDC WD3200SD-01KNB0 08.05J08> at ata6-master SATA150 ad14: 305245MB <WDC WD3200YS-01PGB0 21.00M21> at ata7-master SATA150 After a reboot everything seems fine again and my RAID is rebuilt. I don't know why it happens, but it sucks :-/. I'm running 7-CURRENT BTW. -- Simon L. Nielsen
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