From mboxrd@z Thu Jan 1 00:00:00 1970 From: "NeilBrown" Subject: Re: mismatch_cnt again Date: Tue, 10 Nov 2009 08:14:13 +1100 Message-ID: <73ebdcee169f46611d411755f9aaca5b.squirrel@neil.brown.name> References: <4AF4C247.6050303@eyal.emu.id.au> <4AF4D323.6020108@panix.com> <4AF5268D.60900@eyal.emu.id.au> <4877c76c0911070008m789507f8h799d419287740ca5@mail.gmail.com> <87tyx6tpcb.fsf@frosties.localdomain> <4AF58B20.3000409@redhat.com> <87iqdlaujb.fsf@frosties.localdomain> <4AF74B61.6000102@rabbit.us> <20091109185632.GA2723@lazy.lzy> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Return-path: In-Reply-To: <20091109185632.GA2723@lazy.lzy> Sender: linux-raid-owner@vger.kernel.org To: Piergiorgio Sartor Cc: Peter Rabbitson , Goswin von Brederlow , Doug Ledford , Michael Evans , Eyal Lebedinsky , linux-raid list List-Id: linux-raid.ids On Tue, November 10, 2009 5:56 am, Piergiorgio Sartor wrote: > I think this you explained is the basic common understanding, at > least fori me, on what will be the next step of the MD software. Is this an offer to submit a patch ?? :-) > > About Neil answer. My opinion is that you do not need a model > of what happen to a person, jumping out of a plane at 6000ft, > when he reaches the ground, to know he better use a parachute... I disagree. You do need a model. The particular features of the model would be the weight and wind-resistance of the person so that you can estimate what extra wind resistance is needed to reduce terminal velocity such that the impact will be something that the person's legs can absorb. So you also need the model to describe the legs in enough detail so that a suitable target terminal velocity can be determined. > > No offense Neil... :-) I never take offense - it just doesn't seem to be worth the effort. > > In other words, IMHO, sometimes could be good to be proactive > against unspecified problems, than later complain. If we proactively hand out parachutes that can just barely land a small dog safely, then we aren't doing any people any favours, and probably are making their situation less safe because they are more likely to take a risk in the belief that their parachute will protect them - which it might not. > > Of course, if this is a manpower issue, maybe we should find > some support for the coding and the rest. Certainly manpower is an issue - and it is pointless spending it on something that you think sounds nice, but have no evidence that it will actually address a real need. The money spent on those dog-sized parachutes would clearly be a complete waste. NeilBrown > > There was already the question about patches, I guess this is > an open possibility. > > bye, > >> My 2c on how to approach this subject without controversial auto-repair >> issues: http://marc.info/?l=linux-raid&m=120605458309825&w=2 >> Also follow the thread to see Neil's reply >> >> Cheers >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-raid" in >> the body of a message to majordomo@vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html > > -- > > piergiorgio > -- > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html >