On 9/30/2012 12:31 PM,
ab...@127.0.0.1 wrote:
> On 2012-09-29, Gallian <
gal...@linuxmail.org> wrote:
>> Or the variation we had last week, the lusers that need to connect to a
>> business critical server at a different office, and ask if there is
>> another way to connect when their line goes down.
>>
>> 'Short of having a backup line, there isn't.'
>>
>> 'Well, can't you order us one?'
>
> 'Yes. But I have to warn you: you knowest not what you askest.'
>
> There's a new shiny building on the next block that lost power
> in a summer thunderstorm. The building has two separate power
> feeds coming in from opoosite sides. The clever design is, one
> feeds the western half of the building, the other: eastern half.
> There is a Very Big Switch in between that must stay open or Bad
> Shit(tm) will happen. But if one side of the building loses power,
> someone goes up there and throws the switch closed, and there shall
> be light.
>
Back in the dark ages, Cape Canaveral Air Force Station was designed
with dual power feeds, one station in the north and one in the south.
Either could support the entirety of CCAFS. And then CCAFS grew. And
grew. And grew. In the early 90s it was decided to replace the
transformers in each of the stations. No problem. Just power down the
one station and let the other carry the load until the transformers are
replaced. So they throw the switch (or what ever they do) and we had an
excellent test of all the backup power systems.
--
Walk to end Alzheimer's
http://tinyurl.com/9re5zpn The end of Alzheimer's disease starts here