Date: Wed, 14 Aug 2013 12:56:05 -0700 From: Artem Belevich <art@freebsd.org> To: Stan Grishin <stangri@melmac.net> Cc: freebsd-fs <freebsd-fs@freebsd.org> Subject: Re: kernel panics because of the corrupted zpool meta-data Message-ID: <CAFqOu6g9k_ddYvNTdTYMsHevJ9bgx0FS3PjKYFeLt_k04gBgkg@mail.gmail.com> In-Reply-To: <9274C3CA-36F5-4EDC-A645-C612C6D71E8A@melmac.net> References: <96CA3382-A3C7-472A-82C9-20C1ACACD5B9@melmac.net> <CAFqOu6hcrUjyAmRqQXKBdZq6nG5ZhG=76pukn3U2nR%2BWAaqNTw@mail.gmail.com> <9274C3CA-36F5-4EDC-A645-C612C6D71E8A@melmac.net>
next in thread | previous in thread | raw e-mail | index | archive | help
On Wed, Aug 14, 2013 at 12:44 PM, Stan Grishin <stangri@melmac.net> wrote: > Artem, > > Thanks for you suggestion. No, I haven't tried that particular command. > But how can I get the transaction ID if even simple zpool import (no > parameters) causes kernel panics? > > "zdb -e" should work on un-imported pools. --Artem > -Stan > > On 2013-08-14, at 11:27 AM, Artem Belevich <art@freebsd.org> wrote: > > > > > On Wed, Aug 14, 2013 at 7:33 AM, Stan Grishin <stangri@melmac.net> wrote: > >> As recommended in FreeBSD forums I'm posting the message here. >> >> I have a peculiar case where NAS4Free has corrupted the meta-data on my >> 4-disk raidz pool and a few flavours of FreeBSD and a latest version of >> OpenIndiana I've tried go down just when I try zpool import with no >> additional parameters (kernel panics). >> >> I have more or less given up of my precious data, but if any FreeBSD dev >> wants to investigate or help me fix the problem I'd gladly try any special >> build you'd want me to. >> >> PS. I've tried removing disks one by one, but any 3 out of 4 cause kernel >> panics and with just two I can't get my data back. >> >> PPS. zdb -l works and reports valid information about zpool >> configuration, but I can't fix any problems with zdb. >> >> > Did you try rolling back your pool to a previous state with 'zpool import > -T <txg>' ? It will attempt to import the pool as it was at the time > particular transaction group was committed. > > Here's more info (it's for solaris, but should work on recent FreeBSD, > too): > http://www.c0t0d0s0.org/archives/7621-Back-in-time-or-zpool-import-T.html > > --Artem > > >
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?CAFqOu6g9k_ddYvNTdTYMsHevJ9bgx0FS3PjKYFeLt_k04gBgkg>