From owner-freebsd-fs@FreeBSD.ORG Sat Sep 1 12:33:05 2007 Return-Path: Delivered-To: fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 1AF5216A419 for ; Sat, 1 Sep 2007 12:33:05 +0000 (UTC) (envelope-from marck@rinet.ru) Received: from woozle.rinet.ru (woozle.rinet.ru [195.54.192.68]) by mx1.freebsd.org (Postfix) with ESMTP id 972F513C45D for ; Sat, 1 Sep 2007 12:33:04 +0000 (UTC) (envelope-from marck@rinet.ru) Received: from localhost (localhost [127.0.0.1]) by woozle.rinet.ru (8.14.1/8.14.1) with ESMTP id l81CADH9047211; Sat, 1 Sep 2007 16:10:13 +0400 (MSD) (envelope-from marck@rinet.ru) Date: Sat, 1 Sep 2007 16:10:13 +0400 (MSD) From: Dmitry Morozovsky To: Poul-Henning Kamp In-Reply-To: <4456.1188643173@critter.freebsd.dk> Message-ID: <20070901160713.V14738@woozle.rinet.ru> References: <4456.1188643173@critter.freebsd.dk> X-NCC-RegID: ru.rinet X-OpenPGP-Key-ID: 6B691B03 MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-3.0 (woozle.rinet.ru [0.0.0.0]); Sat, 01 Sep 2007 16:10:13 +0400 (MSD) Cc: fs@freebsd.org, Yar Tikhiy Subject: Re: New option for newfs(3) to make life with GEOM easier X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 01 Sep 2007 12:33:05 -0000 On Sat, 1 Sep 2007, Poul-Henning Kamp wrote: PK> In message <20070901093035.GA18069@harmless.hu>, Gergely CZUCZY writes: PK> PK> >Though for this, geom class manuals should mention how much PK> >space do they need for the metadata at the end. Or to simplify PK> >thing an option for like "reserve some space for (gmirror|gstripe|gfoobar)" PK> >should be introduced. Or specifing the module and newfs could "ask" PK> >the geom class for its metadata size that should be reserved. PK> >Just thinking, sorry if it was too wild... PK> PK> THe original intent was that you would stick the geom class there PK> first, then make the filesystem. Doing things in the other order PK> is asking for trouble. Well, while in general I agree with you, there are situations where such functionality is desired (hence the patch I originally wrote). Besides migrating to gmirror already mentioned, there were situations where I decided to insert gcache layers between graid3 and partitions. Sincerely, D.Marck [DM5020, MCK-RIPE, DM3-RIPN] [ FreeBSD committer: marck@FreeBSD.org ] ------------------------------------------------------------------------ *** Dmitry Morozovsky --- D.Marck --- Wild Woozle --- marck@rinet.ru *** ------------------------------------------------------------------------