From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Thu, 21 Sep 2006 11:42:28 +0200 From: Heinz Mauelshagen Subject: Re: [linux-lvm] Misleading documentation Message-ID: <20060921094228.GB4796@redhat.com> References: <1158603016.7182.12.camel@localhost.localdomain> <450EEEA0.7020703@mdmiller.com> <1158606792.7182.15.camel@localhost.localdomain> <1158607438.19905.30.camel@bounty.rider.geekspirit.net> <1158608077.7182.18.camel@localhost.localdomain> <20060918193728.GC28043@arvo.suso.org> <4B875923-CB76-4792-837B-EDA3B9E53756@slamb.org> <45111CDA.6080406@mortent.org> <20060920114019.GA4796@redhat.com> <1158756105.31514.3.camel@les-home.futuresource.com> Mime-Version: 1.0 Content-Disposition: inline In-Reply-To: <1158756105.31514.3.camel@les-home.futuresource.com> Reply-To: mauelshagen@redhat.com, LVM general discussion and development List-Id: LVM general discussion and development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , List-Id: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Les Mikesell Cc: LVM general discussion and development , mauelshagen@redhat.com On Wed, Sep 20, 2006 at 07:41:45AM -0500, Les Mikesell wrote: > On Wed, 2006-09-20 at 06:40, Heinz Mauelshagen wrote: > > > > >This is my biggest beef with LVM - why doesn't *any* of the > > > >documentation point this out? There are very few good reasons to use LVM > > > >without RAID, and "ignorance" certainly isn't among them. I don't see > > > >any mention of RAID or disk failures in the manual pages or in the HOWTO. > > > > > > Mirroring should be dealt with in LVM itself, by mapping more PEs on > > > physical seperate PVs to each LE. From the little information I've seen > > > about the new LVM mirroring, it seems that the mirrors are defined on LV > > > level instead of LE/PE. But after some JFGI sessions nothing really > > > enlightening has shown up. > > > > LVM2 does mirror by grouping multiple (hidden) logical volumes > > into a mirror set. > > Where would I find example commands to add a mirror, check > the mirroring status, break it, reuse the other half, etc.? 'man lvcreate' to start with. > Is it possible to mirror a snapshot instead of the changing > volume? Not yet. > > -- > Les Mikesell > lesmikesell@gmail.com > -- Regards, Heinz -- The LVM Guy -- =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Heinz Mauelshagen Red Hat GmbH Consulting Development Engineer Am Sonnenhang 11 Storage Development 56242 Marienrachdorf Germany Mauelshagen@RedHat.com PHONE +49 171 7803392 FAX +49 2626 924446 =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-