Date: Sun, 19 Dec 2010 00:47:04 +0300 From: Sergey Gavrilov <srg.gavrilov@gmail.com> To: "James R. Van Artsdalen" <james-freebsd-fs2@jrv.org> Cc: freebsd-fs@freebsd.org Subject: Re: ZFS recovery after power failure Message-ID: <AANLkTi=Lt3kv0Bfq12FN953=FXe5dDhuN0QZBVz3tAJA@mail.gmail.com> In-Reply-To: <4D0D156B.1070402@jrv.org> References: <AANLkTikpYhLFxTp-5ahXQcZTMC5jMTK9Ca%2B6Xq4VEhhO@mail.gmail.com> <4D0D156B.1070402@jrv.org>
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System was 8.1 STABLE, when it failed. 8 Seagate Constellation SAS drives and 3ware 9690SA-8I controller (was in performance mode without BBU). I khow it's my mistake, I relied on UPS. And UPS (Symmetra RM) was the reason of the power failure. Another strange thing was happened as well. System as I said was 8.1 and always been 8.1 with ZFS ver. 15. But when I was trying to import pool I couldn't because of my vesion of ZFS is less than pool version. zpool upgrade -v shown ver. 14. I've upgraded system to 8.2-PRERELEASE. It's resolved problem with versions. By now I've recovery practically all data on pool using dd, od and the ZFS On-Disk Specification<http://opensolaris.org/os/community/zfs/docs/ondiskformat0822.pdf>paper. Sorry for the buzz and my english. If any questions, I will grad to answer if it help somebody else. 2010/12/18 James R. Van Artsdalen <james-freebsd-fs2@jrv.org> > On 12/18/2010 2:21 AM, Sergey Gavrilov wrote: > > Hi all! > > After hard power off pool's faulted. > > When I'm trying zpool import pool2 I've got: > > cannot import 'pool2': I/O error > > I do know how to recover pools. But I do want to know how it failed. > > Please post the output of "uname -a" so we know what system and version > of FreeBSD was used. > > Also, what of hard disks are these and how are they attached to the system? > > -- Best regards, Sergey Gavrilov
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