Date: Sat, 24 Apr 2004 10:08:42 +0930 From: Greg 'groggy' Lehey <grog@FreeBSD.org> To: synrat <synrat@wirewalk.org> Cc: freebsd-questions@freebsd.org Subject: Re: vinum requirements Message-ID: <20040424003841.GE49318@wantadilla.lemis.com> In-Reply-To: <20040423144713.J85618@mail.wirewalk.com> References: <20040422110437.U73285@mail.wirewalk.com> <20040422224514.GA13249@wantadilla.lemis.com> <20040423144713.J85618@mail.wirewalk.com>
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--WBsA/oQW3eTA3LlM Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Friday, 23 April 2004 at 14:47:30 -0400, synrat wrote: > On Fri, 23 Apr 2004, Greg 'groggy' Lehey wrote: > >> On Thursday, 22 April 2004 at 11:32:22 -0400, synrat wrote: >>> >>> does vinum configuration need to be located >>> in the beginning of the drive after bootstrap or >>> is it possible to store at the end of the drive ? >> >> Currently it must be at the beginning of a drive. >> >>> the reason I ask is I only have 60kb available in the beginining and >>> the first partition is /. I should be able to shrink swap, which is >>> at the end of the drive, but I'm not sure I understand how vinum >>> stores it's configuration. Does there need to be a separate >>> partition for vinum that has at least enough space for >>> configuration, which doesn't overlap with anything else ? >> >> No, it's part of the drive. In Vinum terminology, a "drive" is a disk >> partition, the same one on which the subdisks are stored. >> >>> Is the rest of vinum partition supposed to overlap with everything >>> that I want to configure as a plex ( I'm talking about mirroring >>> exisiting partitions ) Or should there be 2 different vinum >>> partitions, one for configuration and another one for plexes ? >> >> I'd suggest you take a look at the documentation at >> http://www.vinumvm.org/cfbsd/vinum.pdf. It should clarify a number of >> things. >> >> And yes, in retrospect it was a bad idea to put the configuration at >> the front of the drive. > > Does all this mean that if I don't have ~133kb available > for Vinum in the beginning of the disk before my first ( root ) > partition, I can't use Vinum on that disk ? Well, you would have to rearrange things. > or would it write half of the configuration in that first 60kb and > the rest in whatever other freespace I have ? No, it would write half the configuration in the first 66.5 kB and the rest of the configuration directly behind it, overwriting important things like the first two superblocks. > I admit this sounds like a joke :). It sounds more like a recipe for disaster to me. Greg -- When replying to this message, please copy the original recipients. If you don't, I may ignore the reply or reply to the original recipients. For more information, see http://www.lemis.com/questions.html Note: I discard all HTML mail unseen. Finger grog@FreeBSD.org for PGP public key. See complete headers for address and phone numbers. --WBsA/oQW3eTA3LlM Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.0 (FreeBSD) iD8DBQFAibcRIubykFB6QiMRAjZtAJ90rKDX6p4LTRazNnCTH8qnc3o5iwCfWQOt cVIUnBng7FfHVuWiU+9aCts= =43km -----END PGP SIGNATURE----- --WBsA/oQW3eTA3LlM--
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