Date: Thu, 21 Jul 2005 17:13:25 -0500 From: Karl Denninger <karl@denninger.net> To: freebsd-stable@freebsd.org Subject: Re: Machine Replication Message-ID: <20050721221325.GA64851@FS.denninger.net> In-Reply-To: <42E01BB3.1040801@unixforge.net> References: <42DFF582.1050406@unixforge.net> <20050721211305.GC10821@aoi.wolfpond.org> <010f01c58e3e$28458b50$37cba1cd@emerytelcom.com> <42E01BB3.1040801@unixforge.net>
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Yep. Pretty much what I used to do with my ISP. -- -- Karl Denninger (karl@denninger.net) Internet Consultant & Kids Rights Activist http://www.denninger.net My home on the net - links to everything I do! http://scubaforum.org Your UNCENSORED place to talk about DIVING! http://homecuda.com Emerald Coast: Buy / sell homes, cars, boats! http://genesis3.blogspot.com Musings Of A Sentient Mind On Thu, Jul 21, 2005 at 03:03:31PM -0700, Eli K. Breen wrote: > I should point out, this is for replication in a running production > environment. Machines cannot be taken down, and swapping hardware is not > an option. > > I'm currently experimenting with a copy of the MBR, and the root > partition on a CD, with enough tools to attach to the network to > retrieve images of the rest of the partitions (which can be taken as > current snapshots from various servers). > > This _should_ result in the following scenario: > > Boot new machine with CD > partition drive(s) > dump MBR > dump root > ssh foo@server 'dump -C 64 -0af - /sliceX'| (cd /usr; restore -rf -) > [repeat above for all drives, could be automated] > > Seem reasonable? > > -E- > > > Elliot Finley wrote: > >----- Original Message ----- > >From: "Francois Tigeot" <ftigeot@wolfpond.org> > > > >>On Thu, Jul 21, 2005 at 12:20:34PM -0700, Eli K. Breen wrote: > >> > >>>Does anyone have a good handle on how to replicate (read: image) a > >>>freebsd machine from one machine to an ostensibly similar machine? > >> > >>[...] > >> > >> > >>>Now whether my details are a bit off, that's fine, I don't want this to > >>>be diluted in to discussion of minute frivolous details (as these > >>>things > >>>are wont to do), but what I _am_ looking for is a tried, tested and > >>>true > >>>method of FreeBSD machine replication, specifically for the 5.3+ > > > >releases. > > > >>I have found the following paper to be incredibly usefull : > >> > >>http://www.pix.net/software/pxeboot/archive/SANE.pdf > >> > >>I used some of the ideas in it to clone machines in the 5.1-5.2 era. > > > > > >You could also just mirror the drive with a Promise RAID 1 card. I've > >done > >that a couple of times and it works really well. > > > >Elliot > > > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" > > > %SPAMBLOCK-SYS: Matched [@freebsd.org+], message ok
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