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Anybody using Salt?

From: Lisa Ridley 
Is anybody on the list using Salt to manage IT infrastructure?  If you are,=
 I=92d love to chat with you about how Salt fits into your overall manageme=
nt process, and what tools you are using alongside Salt to manage your dist=
ributed systems.


Lisa Ridley

Power to the People

From: Mike Harrison 
On Oct 23, 2014, at 8:26 PM, Dave Brockman  wrote:
> But somewhere in the line, you require 3 phase to arrive at 208v? Can't g=
et there from single phase 120/240, which was my point to the OP, if 3 phas=
e was not already installed at the location in question?

I apologize for the ramble in advance, it=92s 4am in S. Africa and this is =
helping me go back to bed:

I love these arguments because there are SO many exceptions. 208 hot to a n=
eutral does exist, but not usually in USA residential situations. =

Most US residential area=92s have a bucket transformer that provides 2 hots=
 and a neutral to the house. Each hot is 180 degrees out of phase with the =
other, so measuring across them gets you 240 volt. This is what typically (=
not always) feeds electric stoves, heating/cooling systems, and your electr=
ic clothes dryer. =

In other cases, the transformer is a =913 phase=92 transformer (and could b=
e a delta or Y configuration) they provides 3 hots, each 120 degrees from e=
ach other. So any hot to any hot gets you an RMS (root mean square) average=
 of =93208v=94 You house might only have 2 of the three hots, but that is u=
nusual also. =

A lot of McMansions(tm) now have 3 phase power to them, because the HVAC lo=
ad is so high. All 3 phases, plus neutral.. and big fat wires (sometimes 40=
0+ amp service). =

The phase difference makes a BIG difference to induction motors, like HVAC =
systems. But many household appliances and HVAC systems can be configured f=
or 208 or 240. It=92s typically a minor change in which/how some wires get =
joined together. =

So, in your home rack, your computer equipment can often run anything, exce=
pt for the little transformer based plugs for small things like switches. A=
nd some (expensive) UPS=92s can take one configuration in, and provide anot=
her out. What I usually see in big buildings is 208, two hots and a neutral=
 IN, and 208, two hots and a neutral out. Most power supplies take 240 as w=
ell. =

and they convert it to DC via switching power supplies. At the average hous=
e (unless you have real 3 phase power), you=92ll be running 240 volts AC in=
to the rack. two hots, 180 degrees apart. =

But real geeks are running on 48v DC=85 with a big bank of wet cells. And u=
ber-green geeks charge it up with solar power :)


Horror story: In some places (Dominic are you still on the list?), a buildi=
ng might be 240 50 hertz=85(british style) (1 hot, 1 neutral) and across th=
e street is 120 volt 60hz. Although I hear they are almost all 60hz now. An=
d if Dominic is on the list and responds, anything he says is better (but m=
aybe crazier) info than mine. =

Getting an OS Conference like this one in Chattanooga

From: Lisa Ridley 

So, I=92m at All Things Open this week (Phil Shapiro is presenting tomorrow=
), and it totally rocks.  The folks at IT-ology have done a fantastic job o=
rganizing this one.

So, what do we have to do to get a conference like this organized and held =
in Chattanooga?

After all, we are the Gig City=85.I can=92t think of a better way to promot=
e it than something like this.  (And, I don=92t want to have to drive to Ra=
leigh, Spartanburg, Columbia, Atlanta or fly to Austin or San Francisco to =
attend quality conferences OS Conferences =97 yes I have an ulterior motive=

Does EPB sell or lease IPv4 addresses?

From: Lynn Dixon 
So, in my possibility of moving to Ooltewah, and getting EPB I have a
question for the LUG.

Does EPB sell/lease IP addresses to their residential customers?  I have a
/28 at Peace Communications as part of my Colocation, but it would be nice
to buy a /29 to use for my home lab, and a some other personal services.

I know we have some EPB guys on here, and was hoping someone could give me
some insight.

OT: HOAs and buying a house (was EPBfi already outside of city?)

From: Dan Lyke 
On Wed, 22 Oct 2014 09:56:27 -0500
James Nylen  wrote:
> As a potential future homeowner this is a concern of mine.  What are
> some things to look out for, and is it possible to buy a house
> without signing that crap?

So: Yes, it is totally reasonable to say "I'm not going to buy a house
with an HOA attached to it."

Also, personal preferences here: When you look for a house, often you
can get a lot of square footage in a brand new subdivision with 2 or 3
models for a hundred+ homes, and a HOA. This is super attractive:
Everyone is of your economic class (they're all buying almost exactly
the same house you are), your age (highly correlated to economic class
and when the subdivision was built), the HOA provides some level of
assurance that your neighbors will keep their houses looking the same...

What this really means is that your neighborhood will age and decline
at exactly the same rate. This leads to the standard real estate cycle.

If, instead, you can buy in a neighborhood that's 50+ years old, that
doesn't have an HOA and has very loosely enforced zoning, you'll pay a
bit of a premium, but you get a more heterogenous neighborhood that's
going to have a less extreme real estate cycle. People will die off
and/or move out at different times in their lives. You'll have a bigger
mix of kids and elderly.

Loosely enforced zoning means that the neighborhood has adapted to real
world needs, you have inlaw units, and expansions, so houses are
different sizes, and have evolved to how people really live, rather
than how people browsing model homes think they want to live.

Also, seriously consider preferring grid layout streets to cul-de-sacs:
Grids encourage walkability and knowing more than your immediate
neighbors. You have more neighbors to temper the swings of a