From mboxrd@z Thu Jan 1 00:00:00 1970 From: Martin Cracauer Subject: Re: Superblock V 1.2 Date: Sun, 7 Nov 2010 16:08:52 -0500 Message-ID: <20101107210852.GA77472@cons.org> References: <20101107191507.GA31052@cons.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: Sender: linux-raid-owner@vger.kernel.org To: Leslie Rhorer Cc: 'Martin Cracauer' , linux-raid@vger.kernel.org List-Id: linux-raid.ids Thanks, Leslie, Leslie Rhorer wrote on Sun, Nov 07, 2010 at 03:03:39PM -0600: > > > Can I read that array if I ever connect the machine to an older > > kernel/mdadm? > > That depends on just how old. The new superblocks have been > supported for quite some time. Worst case you will need to upgrade the old > kernel to a newer one. Is mdadm actually involved? If I have a new enough kernel but an old mdadm, will the kernel code alone be enough to start the array? I guess it should since it can start the arrays at boot time with no mdadm involved. Martin -- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Martin Cracauer http://www.cons.org/cracauer/