Date: Sat, 1 Sep 2007 16:10:13 +0400 (MSD) From: Dmitry Morozovsky <marck@rinet.ru> To: Poul-Henning Kamp <phk@phk.freebsd.dk> Cc: fs@freebsd.org, Yar Tikhiy <yar@comp.chem.msu.su> Subject: Re: New option for newfs(3) to make life with GEOM easier Message-ID: <20070901160713.V14738@woozle.rinet.ru> In-Reply-To: <4456.1188643173@critter.freebsd.dk> References: <4456.1188643173@critter.freebsd.dk>
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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 *** ------------------------------------------------------------------------
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