Re: Some very thought-provoking ideas about OS architecture.

Pavel Machek (pavel@atrey.karlin.mff.cuni.cz)
Mon, 21 Jun 1999 16:05:43 +0200


Hi!

> > > I don't think it is really so important. If system crashes, something is
> > > bad anyway, and you should cure the causation (fix bugs), not the
> > > consequence (do quick recovery).
> > > Power fault is another case, but I think it really doesn't matter if
> > > system is down for 3 hours because of power fault or 3 hours and 10
> > > minutes because of power fault and fsck.
> >
> > Or 3 hours of power fault and 3 hours of fsck... Which is exactly what
> > happens on ~100Gig disks.
>
> If you have enough money to buy 100G disk, you have certainly enough money
> to buy UPS :-)

Yes, and when your kernel goes crazy that you certainly can not afford
to wait 3 hours.

People tend to do stupid things. How many times did you crash your
machine? Imagine you would have to wait _3 hours_ after each crash. No
no.

Certainly machines with 100G disks have UPSes. But shit happens: I've
seen fuse failing _after_ UPS.

And: 100G is not that much any more. When you buy new computer today
(not lowend), you get 10G disk. Take ten of them and you have 100G. It
is not much!

You see? If you only take 10 computers you have 100G of disk space!
100G is not much space any more.

Pavel
PS: If you want to reply, please do so in private mail. (Or, even
better, talk).

-- 
The best software in life is free (not shareware)!		Pavel
GCM d? s-: !g p?:+ au- a--@ w+ v- C++@ UL+++ L++ N++ E++ W--- M- Y- R+

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