[Cialug] tornado-proofing your data?

[murraymckee at wellsfargo.com]

That's assuming that you built a structure strong enough to hold the
panels against the wind during the storm.  And even if the frame holding
the panels survived you'd have to contend with the panels being blown
out of the frame.  

Murray McKee 
Operating Systems Engineer
WFFIS - Wells Fargo Financial Information Systems 
800 Walnut Street
MAC F4030-037
Des Moines, IA 50309-3605
WORK (515)557-6127 Cell (515) 890-9660  FAX (515) 557-6046
MurrayMcKee at WellsFargo.com 
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-----Original Message-----
From: cialug-bounces at cialug.org [mailto:cialug-bounces at cialug.org] On
Behalf Of Dan Hockey
Sent: Tuesday, May 27, 2008 11:11 PM
To: 'Central Iowa Linux Users Group'
Subject: RE: [Cialug] tornado-proofing your data?

* Backup onto a remote server located in the underground fruit cellar in
the
back yard.
*Use a combination of a solar/wind power the power it.
*Since you only need about 500 watts, you could do this for a reasonable
cost.

Have you priced solar panels and batteries lately?

500 watts x one hour = 500w/hr or 0.500Kw/hr
0.5Kw/hr x 24hrs = 12Kw/hr <- and that's just for one day.

Now for the battery pack..
Using the Optima blue top (55ahr) for this example.

(55ahr x 12v) / 1000
         660  / 1000
         =0.66Kw/hr just for one battery.

55ahr x 20 = 1100ahr

(1100ahr x 12v / 1000 = 13.2Kw/hr

1 battery = $169.95 x 20 = $3399.00

Keep in mind your solar array is going to be 2x to 3x larger in order to
charge the battery bank with the ~4hr of useable sunlight(for ia) for
fixed
solar panels.
As you can see this is starting to get expensive to keep your data safe,
that doesn't include the inverter and charge controller. You will be the
only one in town with the highest uptime after the tornado blows
through.
-dh   

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