Date: 03 Mar 2000 08:48:34 -0700 From: Jamie Gritton <gritton@iserver.com> To: stable@freebsd.org Cc: jeff-ml@mountin.net Subject: Re: recent vinum changes Message-ID: <x79000rr59.fsf@guppy.orem.iserver.com> In-Reply-To: "Jeffrey J. Mountin"'s message of "Fri, 03 Mar 2000 07:27:32 -0600" References: <Khetan Gajjar's message of "Thu, 2 Mar 2000 22:03:00 %2B0200 (SAST)"> <Pine.BSF.4.21.0003022201340.39426-100000@bofh.ops.uunet.co.za> <3.0.3.32.20000303072732.00989b20@207.227.119.2>
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"Jeffrey J. Mountin" <jeff-ml@mountin.net> writes: >> Generally, a "vinum start" on the previously dead plex... > What was the previous state of the dead plex and it's subdisks? The plex is faulty and the subdisk is stale. > I've had subdisks go "stale" or even "faulty" by themsleves or by design > (ala testing), but the plex is only "down" (if that's what you mean by > "dead"). These are generally bona fide hardware errors, i.e. a disk that won't spin up. > From your first message the loss of data on the "up" plex when reviving > isn't reassuring, but I've blown up plexes various ways and recovered most > every time. Note the "most" covers the more exotic and crazy ideas. The chance of recovery seems to decrease with usage of the system. An idle but non-single-user system weill usually make it through the recover OK, but then panic on some variety of filesystem errors, and be repairable with "only" a few dozen lost+found files. Generally, things are so bad, fsck can't find a superblock on the "good" half of the mirror. - Jamie To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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