Date: Sun, 28 Jun 2015 16:15:56 +0000 From: =?utf-8?B?S2FybGkgU2rDtmJlcmc=?= <karli.sjoberg@slu.se> To: Johan PONIN <johan.ponin.pro@gmail.com> Cc: "freebsd-fs@freebsd.org" <freebsd-fs@freebsd.org> Subject: Re: Lost pool after nas4free configuration asynchrony. [x-post] Message-ID: <76f0a25b-3307-4de1-8cba-4b869203888a@email.android.com>
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Den 28 jun 2015 5:37 em skrev Johan PONIN <johan.ponin.pro@gmail.com>: > > pre-disclaimer, I sent this onto zfs-discuss before realizing it was a > zfsonlinux ML, so I'm copying the mail here. > > Hi, > > Disclaimer, this is my first NAS, I barely know FreeBSD, have a > computer engineer degree though and archlinux as a daily driver. > Consider this a mostly PEBCAK story. I hope you'll read through > nonetheless. > > Setup > - NAS4Free from a 4GB usbkey on HP N54L. > - 3x1TB WD Red as a vdev > - 1 pool, 1 dataset, raidz (single parity AFAICR). > > The usbkey failed, nas4free config was lost. I `dd` it onto a new 8GB > usbkey, boot and got to the console to reset factory config to gain > access to the webgui (I remember doing that once causing no issue with > the zfs pools and datasets) > > The webgui showed no more pool/dataset, but running /etc/rc.d/zfs > start mounted everything fine. zfs scrub reported no errors. Data was > there, a few `less /mnt/../file` showing good data. > > Trying to recreate the pool config in the gui to avoid mounting by > hand, I got some errors, but the GUI told me it detected a pool > config, offered to synchronize but I was afraid not knowing in what > direction it would do it. I removed the pool I created. Pool and > dataset still accessible. I reboot, try a second time the "same" > thing. But now the new pool is validated, the old pool isn't detected, > and I got an empty dataset. > > I tried some commands (shouldn't have, idiocy). That said, I didn't > add data to this new pool/dataset, and so I'm hoping the actual zfs > object graph is intact. Of course I don't know how deep 'zpool ...' > commands change things, that might be very naive of me. > > What options are there ? Could I copy the 3 1TB blocks onto another > drive and attempt some form of uberblock scan ? > > Thanks in advance for your time. > > ps: what are other knowledgeable people ? freebsd-fs ML ? I have read > George Wilson's name but it seems impolite. > _______________________________________________ > freebsd-fs@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-fs > To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org" How about you drop to a shell and show: # zpool status and # zpool import ? /K
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