From mboxrd@z Thu Jan 1 00:00:00 1970 From: malahal@us.ibm.com Subject: Re: [PATCH 7/7] Hold all write bios when errors are handled Date: Thu, 26 Nov 2009 14:22:28 -0800 Message-ID: <20091126222228.GA27430@us.ibm.com> References: <20091123055835.GA28981@us.ibm.com> <20091124191704.GB7971@us.ibm.com> <20091125202346.GB1673@us.ibm.com> Reply-To: device-mapper development Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com To: dm-devel@redhat.com List-Id: dm-devel.ids Mikulas Patocka [mpatocka@redhat.com] wrote: > > > If you ask the admin always if primary leg failed and wait for his > > > action, you lose fault-tolerance --- the computer would wait until > > > the admin does an action. > > > > Well, we are talking one time admin help at reboot [actually activation > > time] if and only if the "state of the mirror" changed during reboot! > > This is not applicable at run time. Most of the time, dmeventd will have > > a chance to change the mirror to linear anyway. > > You can ask the admin about failed on reboot --- but why do it if it can > continue on its own? (unless both legs fail) Agreed, it is better to stop on either failure.