[ale] uptime?

[Brian J. Dowd]

How about a totally fabricated pseudo-scientific answer?

Take the number of computers in a network which have
shareable data on them. Multiply the "uptimes" together
to show to effects on availability of data.
Example  #1 100 computers with uptimes of 98% is 100^.98 = ~91%
Example #2 100 computers with uptimes of 95% is 100^.95 = ~79%
In a truly distributed environment where you may *think* that
an uptime of 95% (Win) is ok, the effect on the other systems
can be, in fact, quite poor (79%). What is even worse? Add just
one Windows machine into a network of Linux machines and see
what the transitive value of one poor percentage does to the final number.
-Brian J. Dowd

> Hey! This _has_ to be a great question! (Largely due to the "Calculate
> how... portion - quantify things!)
>
> Regretably, much as I admire the question, I can only make qualitative
> comments. Not quite the useful information requested.
>
> By training from years ago on DEC minis, any system which takes a three
> finger salute as part of the maintenance, gets a one finger salute
> at the same time. No cost/benifit analysis is known to me however.
>
> Likewise, when I sit to the keyboard, I expect things to be ready. I'm too
> sloppy to worry about the last time the stupid thing was rebooted.
>
> I'm looking forward to reading _real_ answers now.
>
> On Wed, 21 Feb 2001, Robert L. Harris wrote:
>
> >
> >
> >   Was watching a discussion the other day.  Someone made a snide
> > anti-linux comment about everyone pro-linux being so impressed by uptimes
> > and how useless they were.
> >
> >
> >   At anyrate, I started wondering what good is an uptime in reality?  I'd
> > like to know a real good use for it.  You can caluculate how since the
> > last crash, etc.  I have my own reasons, but what are other good uses for
> > this information?
> >
> > Robert
> >
> >
> > :wq!
> > ---------------------------------------------------------------------------
> > Robert L. Harris                |  Micros~1 :
> > Senior System Engineer          |    For when quality, reliability
> >   at RnD Consulting             |      and security just aren't
> >                                 \_       that important!
> > DISCLAIMER:
> >       These are MY OPINIONS ALONE.  I speak for no-one else.
> > FYI:
> >  perl -e 'print $i=pack(c5,(41*2),sqrt(7056),(unpack(c,H)-2),oct(115),10);'
> >
> > --
> > To unsubscribe: mail majordomo at ale.org with "unsubscribe ale" in message body.
> >
>
> --
> ===========================================
> The harder I work, the luckier I get.
>                     Lee Iacocca
> ===========================================
> Thompson Freeman          tfreeman at intel.digichem.net
>
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