Re: mismatch_cnt again

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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
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> --
>
> piergiorgio
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