Date: Tue, 20 Dec 2005 00:05:06 +0100 From: Pawel Jakub Dawidek <pjd@FreeBSD.org> To: Walter Hop <freebsd@walter.transip.nl> Cc: freebsd-geom@freebsd.org Subject: Re: dumpon on a gmirror system Message-ID: <20051219230506.GF91822@garage.freebsd.pl> In-Reply-To: <1926276358.20051219235324@lifeforms.nl> References: <1926276358.20051219235324@lifeforms.nl>
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[-- Attachment #1 --] On Mon, Dec 19, 2005 at 11:53:24PM +0100, Walter Hop wrote: +> Hello all, +> +> I hope this is the right mailinglist. +> +> One of our machines running gmirror has become unstable and seems to +> panic at times. I would like to enable crash dumps which requires +> dumping to a swap partition. My problem is: all the partitions are +> gmirror-ed, and gmirror partitions can't be used with dumpon because +> GEOM is already down at the time of dumping. +> +> Someone on a mailinglist had suggested to dump to one of the gmirror +> components directly (/dev/ad4s1b in my case). This would bring the +> disks out of sync, although it wouldn't be critical if dumping works +> exactly as planned. Nevertheless, it would be devastating if I'd ruin +> the mirror set. Is this practice recommended? +> +> I also don't seem to have an entry for ad4s1b in /dev, is there a way +> to get around this? Are you sure you mirror partitions and not slices nor whole disks? Output of 'gmirror list' will be helpful. +> How do people using gmirror exclusively handle the problem of saving +> crash dumps? I, for one, prefer ddb(4), which is enough for me. Other probably have stable systems and don't need dumps at all:) -- Pawel Jakub Dawidek http://www.wheel.pl pjd@FreeBSD.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am! [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (FreeBSD) iD8DBQFDpzyiForvXbEpPzQRAp0IAJ9jrkK+cBe8+ofvKUbEOrIBwbfMZgCeJaPL 7qYQWWUo2cCxeIWIlj2dQNQ= =VgZb -----END PGP SIGNATURE-----
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