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UPS Batteries...The Good, The Bad and The Ugly - Page 5

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Posted by Ecnerwal on October 19, 2005, 3:57 pm

Bad design. Batteries, computers and tapes all in the same room? Common,
but not good design. Any offsite backups? Servers and their on-site
backup tapes should be separated by enough distance that a minor fire
won't get both, and fully offsite backups should be far enough away that
major fire, flood, tornado, etc won't get both (unless it's a tornado
with a flight plan to make your life miserable). A serious computer
center UPS should be down in some nice isolated basement room...

Cats, coffee, chocolate...vices to live by

Posted by danny burstein on October 19, 2005, 4:13 pm

[ snip ]

err, you're much better off with it
above any flood level...

which reminds me of what may, or may not, be a true
story back during the 1965 blackout.

(like all good urban legends, there's enough
plausability here, but I've been unable
to directly verify it).

In the Good Old Days before all the blackouts,
(and before modern day computers and such)
emergency power and lighting was in very few places.

One place usually equipped with something or another
was the local hospital.

NYC had (and has...) a very large municipal
facility called Bellevue. Well known (no) thanks
to generations of tv and movies as a psych place,
it's actually a fully capable (and nowadays
very highly regarded) institution.

Anyway, back in 1965 it had, by 1965 standards,
a pretty good emergency generator setup.

(In fact, in the early 1970s I saw the physical
power plant which had been installed Way Back When
We Built Things Right).

So... when the Sir Adam Beck substation did
its thing and plunged the northeast US (including NYC)
into darkness in 1965, Bellevue went out as well. But
a few minutes later, the generators came on and things
were back to (by 1965 standards) normal.

Except for one little problem.

Generators, especially back then, were big and ugly
and heavy. So... would be in a basement. (Additional
reason for this is it made getting the fuel to them
quite a bit simpler and more reliable).

ok... you know where I'm going...

Guess how high above sea level Bellevue is...

That's right, it's only a couple of dozen feet.

Now guess how high above sea level the
sub, sub, basement... where the generators
were located... is.


Now guess what critical part of the Bellevue plant
was _not_ hooked up to emergency power?

Eyup... the sump pumps.

So a couple of hours after the power went out,
the generators were underwater.

The end.
Knowledge may be power, but communications is the key
[to foil spammers, my address has been double rot-13 encoded]

Posted by Solar Flare on October 19, 2005, 11:37 pm

Similar case. We had our emerg generator rewired and when the power went out in
the Ontario blackout from the Ohio faults the ventilation flaps to the generator
room were on insecure power and the generator would overheat.

Small oversights people miss until D day.

Posted by Steve Spence on October 19, 2005, 4:35 pm

Ecnerwal wrote:

The tapes were in the backup drives. 7 tape dlt loaders. These were
current tapes, not storage. no seperate liebert unit, these were
rackmounted apc units in the same racks as the servers. This company
wasn't serious about anything except the ceo's morning plate of carrots

Steve Spence
Dir., Green Trust, http://www.green-trust.org
Contributing Editor, http://www.off-grid.net

Posted by Too_Many_Tools on October 19, 2005, 9:56 pm

"This company wasn't serious about anything except the ceo's morning
plate of carrots "

Funny....wish I had come up with that comment.


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