Date: Fri, 25 Jan 2008 17:25:57 -0800 From: Jeremy Chadwick <koitsu@FreeBSD.org> To: Joe Peterson <joe@skyrush.com> Cc: freebsd-stable@freebsd.org Subject: Re: "ad0: TIMEOUT - WRITE_DMA" type errors with 7.0-RC1 Message-ID: <20080126012557.GB53400@eos.sc1.parodius.com> In-Reply-To: <479A8A24.5050409@skyrush.com> References: <479A0731.6020405@skyrush.com> <20080125162940.GA38494@eos.sc1.parodius.com> <479A3764.6050800@skyrush.com> <3803988D-8D18-4E89-92EA-19BF62FD2395@mac.com> <479A4CB0.5080206@skyrush.com> <20080126003845.GA52183@eos.sc1.parodius.com> <20080126010054.GA52891@eos.sc1.parodius.com> <20080126010653.GA53255@eos.sc1.parodius.com> <479A8A24.5050409@skyrush.com>
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On Fri, Jan 25, 2008 at 06:17:24PM -0700, Joe Peterson wrote: > Glad you got it back! Yes, when I was first playing with ZFS, I noticed > that booting between single and multi user mode could make the pools > "invisible". Import seemed to bring them back... I did go into single-user mode and attempt to do ZFS-related commands, which might explain the "no datasets available" once I was back in multiuser! I would classify that as a bug, and one which is going to cause all sorts of hair-pulling for administrators in the future. I wonder what it's caused by. The "import" technique I found on a forum somewhere, or possibly on a Solaris mailing list. I was really sweating there for a moment... > So, is the disk toast, or can you still read anything from it (part > table, etc.)? The ad6 disk (/backups) fsck'd cleanly without any missing files or anomalies. The ZFS pool that has two striped disks (ad8 and ad10) is fully intact too, with no loss of data that I can see. I'll have to run a scrub after I'm done copying data over to ad6, just to make sure though. -- | Jeremy Chadwick jdc at parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB |
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